Instructions on how to connect the radio to the battery

Modern cars are equipped with audio systems with good speakers, and some even have subwoofers. Therefore, the sound quality in cars is excellent. In order not to listen to music and not drain your car battery, you need to choose the best way to connect the car radio. This article explains the advantages and disadvantages of the most common connection methods.

Pinout of a standard Euro connector

A Euro connector is a standard plug used in most countries around the world. When connecting equipment, you may encounter non-standard wires tangled in a bundle. This problem is solved by purchasing adapters and pinouting the radio chips.

Standards 1din and 2din

Speaker system connectors come in two types: non-standard ones from the manufacturer, mostly pin-type, and standardized European ones, which are located at the back. Installation of equipment with a special audio connector from the manufacturer will require the use of a special proprietary connector. If the plug is ISO, then you can connect to it directly. There are two types of Euro connectors: 1din and 2din, the difference is in the height of the car radios. The two-block one is twice as tall; it is not connected to all cars, because there is no space on the panel for the required dimensions.

Radios with European 1din are the most common.

When installing car radios, wires with a small diameter of 1.5-2 mm are used, for power lines - with a large cross-section. Failure to follow these simple rules will distort the sound and damage the equipment.

Manufacturers in Japan, the USA and some Chinese use the 2din standard.

Upper power connector A

The plug is used to supply electricity to the receiver, antenna and amplifier, as well as when it is necessary to control the backlight or turn off the sound signal. Standard color markings are used. Outputs 1-3 and 6 are not used in low- and mid-price segment speakers; they are intended for additional options for high-end products.

Connection types

• The first is the connection in the socket of wires of two colors, yellow and red, turning the receiver on/off does not depend on the ignition. The method is inconvenient because it predisposes the battery to discharge if the acoustics are not turned off;
• The second wire is connected through the ignition switch, the yellow wire is connected to the on-board computer.

Functional purpose of the receiver outputs

Pinout of radio ISO connector

Bottom speaker connector B

Used to connect amplifiers (2 cables each). The sound of the equipment depends on whether all connectors are connected correctly. The main thing is not to confuse them, otherwise the acoustics will be of poor quality.

Rules for connecting speakers by color marking of wires

Doesn't turn on

There are several reasons why the radio does not work. These include the following malfunctions:

Fuse blown. This happens due to overloads caused by long-term operation of the device under high load conditions. Fixing this problem is not difficult. You need to remove the device and remove the fuse. The fault is detected using a multimeter. If the radio is connected through a mounting block, its fuses also need to be checked. If there is a breakdown, the parts are replaced. Violation of the integrity of the wires. If the radio in your car does not turn on, you need to inspect the cables for damage.

Particular attention is paid to connecting the receiver to ground. Damaged wires are replaced, connections are made more reliable

The connector terminals are thoroughly cleaned of dirt and crimped. Incorrect connection. This problem can also cause the radio to not turn on. Repairs begin with an inspection of the wiring. The cables leading to the battery are looked for using a test lamp. The wiring has a two-wire structure. To properly connect the battery, the positive pole is connected to the yellow and red wires, the negative pole to the black wire. The blue cable is connected to the antenna and amplifier. Indoor module malfunction. When voltage drops in the on-board network, the microcircuits burn out, causing the device to stop working. Sometimes only sound is missing. If such a malfunction occurs, the receiver must be replaced. The functionality of the generator is checked at a car service center.

Connecting an ISO type car radio

When all the necessary tools are ready for work, you can start connecting. Next, we will look at how to properly connect a car radio with an ISO connector. A special diagram will help us with this, on which you can see which wires are responsible for what and where they go. So, for example, on the left side of the diagram the power connection for the car radio is shown, and on the right is the output to the speakers.

Let's start with connecting the power, since it is at this stage that most mistakes are made. Three wires are responsible for powering the car radio, each of which performs a specific function.

Yellow wire for 12V

This wire is the main one, since it is responsible not only for powering the built-in amplifier, but also for saving the car radio settings. When connecting it, you must use a 10 amp fuse, and the approximate length of the wire should be 30 cm. In addition, yellow wires marked B+, BU or BATT are very common. They can also be used.

Red ACC wire

This wire is responsible for controlling the power of the car radio. Simply put, power will be supplied to the radio only when the ignition key is in the desired position. Surely you have noticed more than once that when you turn the key to the ACC position in the car, the stove, cigarette lighter, radio and other devices start up.

Black wire GND

The wire marked GND is connected to the negative terminal of the car battery. Some car enthusiasts prefer to connect it to the car body, but this is only relevant in cases where the car radio has low power

It is also very important when connecting the GND wire to the car body, thoroughly clean the connection point, thus ensuring good contact

When the car radio is provided with power, you can proceed to the output to the speakers. For this purpose, there are also special wires that are laid to one or another column:

1. Front Left (FL) – front left speaker
2. Front Right (FR) – front right speaker
3. Rear Left (RL) – rear left
4. Rear Right (RR) – rear right

It is worth noting that some car radios have not only wires like FL, FR, and so on, but also so-called tulip connectors. If your speakers are equipped with these types of connectors, you can use them for connection. Otherwise, you need to know which other wires are responsible for what.

White ANT wire

The wire with this marking is responsible for controlling the car radio's antenna. Depending on the signal quality, it supplies power to the internal active antenna or to power the external antenna.

Wire marked ILL (Illumination)

The color of this wire may vary depending on the manufacturer. Most often this is a light pink or yellow version of it. The wire marked ILL is connected to the side lights, to positive. It’s easy to guess that it is responsible for the car radio’s backlight.

MUTE

Responsible for muting the sound when a button is pressed.

Connecting a radio via an additional button

To prevent current leakage, place a button in the cut of the red wire:

1. Button in the section of the red wire of the radio;
2. The button switches between constant “plus” and after ignition;
3. Through the alarm.

With the first option, I think everything is clear: just a regular on/off button is hung in the cut of the red wire on the radio. Thus, your radio always works, but if you decide to leave the car in the parking lot for a long time, then simply turn it off. button to supply current to the radio.

The second option is when an emergency button is used instead of a regular button. You will use the second emergency button to switch the power mode of the radio:

1. The button is pressed - power is supplied to the radio through a constant plus
2. The button is not pressed - power is supplied to the radio through the plus from the ignition

Useful tips

To ensure reliable contact in the connections of power points, it is recommended to twist the copper wires and then reinforce the joint with solder or a metal tube and crimp with a special tool. In the radio section, a separate cable is used, which is responsible for illuminating the buttons and display, which is led to the lamp brightness control on the instrument panel. When the ignition is turned off, the backlight turns off automatically or by a signal from the delay timer, without affecting the saving of settings.

If the car owner wants to maintain the functionality of the head equipment, regardless of the position of the key in the ignition switch, then the red wire is routed past the starter control contact group. A push-button switch is installed on the instrument panel, allowing you to manually turn the power on and off. It is not recommended to leave the power active even when turning off the car radio using the button on the front panel. The amplifier and electronic components consume a current of 0.5-1.0 A, which drains the battery.

Source

How to set up steering wheel buttons on an Android radio

Setting up the steering wheel buttons on the Android radio is done in the following sequence:

1. On the device desktop, go to the “Buttons on the steering wheel” tab;
2. Press the “Reset” button so that all factory settings, if any, are reset;
3. Then press the volume up button on the steering wheel. Two columns should appear on the screen: “Action on a short press” and “Action on a long press.” In the menu of the first column, select the corresponding item (symbol of the speaker and the “+” icon) and press the “OK” button to accept the action;
4. Press the volume down button on the steering wheel, select the appropriate action for it in the left column, accept the settings by pressing the “Ok” button;
5. Next, press the track switch button on the steering wheel (>>|) and program it so that when pressed briefly, it switches a musical composition or radio station, and when pressed long, it starts searching for a radio station (select SEEKUP in the right column). Click the “OK” button. We carry out similar actions for the button (|<<);
6. Press the MODE button on the steering wheel (switching functions - FM, AUX, SD, USB), select a similar action for it in the left column of the menu on the radio screen. Click OK.
7. Click the “Save” button. Ready!

Do-it-yourself car radio installation and connection

Installing a car radio is a creative process, but not very complicated. An experienced car enthusiast, at least a little familiar with the basics of electrical engineering, will be able to connect the car radio with his own hands without any problems. We will tell you in this article how to properly connect a radio in a car, and in what order this should be done.

It should be remembered that an incorrectly installed and connected radio will not only sound bad, but may even lead to a short circuit or even a fire in the car.

A good video instruction for installing and connecting a car radio in a car can be seen in the video at the bottom of this page.

Incorrect connection of the car radio causes the following problems:

• When parked, the radio consumes too much electricity, as a result of which the battery is constantly discharged and if parked for a long time, there is a chance that the engine will not start.
• When listening to music at high volumes, the radio starts to “stutter” and significant distortion of the sound signal appears. Also, at high volumes, the car radio may simply turn off.
• When you turn off the power, the radio settings are lost.

All of these problems in 90% of cases arise due to incorrect connection.

Why the radio does not turn on - solutions to the problem

Check the fuses Anyone who spends a lot of time driving knows that a car radio is a very important part in a car. Any trip is more enjoyable accompanied by your favorite music

Currently, there are many models of car radios to suit every taste and budget. They are equipped with various functions and can satisfy any motorist.

Why doesn't my car radio turn on?

Main causes of malfunction:

• The fuse in the car unit responsible for the operation of the radio has burned out. To solve the problem you just need to replace it. We must not forget that a blown fuse cannot always be identified only by appearance. It is better to ring all the fuses using a special device - a multimeter.
• The fuse on the radio itself has blown. In order to replace it you will have to remove the radio. How to check the wiring correctly depends on the car model and the receiver itself. The fuse is usually located on the back of the device and is blue in color.
• The problem is with the car's wiring. To fix the problem, it is better to contact an auto electrician. It is advisable to do this immediately after a malfunction occurs, since problems with the vehicle's wiring can have very serious consequences.
• There is a malfunction in the radio. This could be a faulty board or radio relay. To diagnose and fix the problem, you need to dismantle the receiver and take it to a service center. Competent specialists will be able to re-solder the radio board. If the malfunction is serious, repairs may have a high cost, comparable to the price of a new radio.

Why does the radio turn on and off:

• Poor grounding. Poor grounding causes surges in electricity in the network, and, consequently, unstable operation of the receiver. It can be quite difficult to determine this visually, so it is better to contact an automobile electrician.
• Perhaps the car radio is poorly secured and moves away when driving. This is very easy to fix; you just need to disconnect the radio and secure it firmly. Since the receiver must be used while the vehicle is moving over various types of terrain, it must be securely mounted.
• The fuse is not securely attached. You need to check all the fuses, including those on the radio, and secure them firmly.
• Short circuit in the wiring. As a rule, the cause of the malfunction is a short circuit in the wires that lead to the speakers. To find the short circuit, you need to use a multimeter. In order to eliminate the short circuit, it is advisable to contact specialists.

Why does the radio turn on by itself?

• The receiver power button is stuck. If it is not possible to send the radio for repairs, you can temporarily solve the problem by removing the radio panel after turning it off.
• Incorrect installation of the radio. When installing, you need to make sure that the wires are not mixed up. Since incorrect installation leads to various problems in the operation of the car radio, it is better to install it in a specialized service center. If you decide to install the car radio yourself, you need to carefully study the instructions for it before starting work.
• Short circuit in the wiring. The described reasons and methods for eliminating them are common to most models of car receivers, such as Pioneer, Mystery, Soundmax, Prology and many others. If you want to solve the problem yourself, you first need to carefully study the instructions for it. Different models of receivers are mounted and dismantled differently. If the radio has stopped working correctly due to a blown fuse, it is very easy to fix it yourself, but if the problem is in the car's wiring, it is better to entrust the solution to professionals. When choosing a service center, it is better to give preference to one that is certified to work with radios of the desired brand, for example, Pioneer.

When installing any electrical equipment, including a radio, in a car yourself, you need to be very careful. Before installation, you must carefully study the instructions. Be sure to follow safety precautions while working. If installed incorrectly, not only may the radio malfunction, but also more serious problems associated with the vehicle's electrical system.

Do-it-yourself power supply

What kind of homemade power supply is needed?

The power supply can be assembled completely independently. It will operate from a 220 volt network. Thus, through it you can connect a car radio and listen to music in your own garage without disturbing your neighbors. The primary task will be to obtain a constant voltage of 14 V from a 220 V outlet. Everything seems clear, but on the other hand, a car radio with speakers and full volume is a very power-consuming device. Here you need as many amps as possible.

Simple 220 V mains power supply

So let's get started:

• We find a future blank for payment;
• We remove everything unnecessary from there: microcircuits, capacitors, etc.

• The diodes should be KD203A, although others are possible, as long as they can withstand the current passing through them;
• As for capacitors, one of them should be 2000 µF, and the other should be 100 µF.

• After that, all that remains is to select the microcircuit. We take into account what speakers the homemade power supply will work with. If the speakers are small, then the microcircuit can be taken at 3 Amperes;
• We install a stabilizer, for which you need to prepare a seat on the board with fine-grained sandpaper. We just take the skin and clean it;
• The stabilizer is treated with heat-conducting paste KPT-8;
• We place it on the radiator using a clamp;
• We take a soldering iron and solder the entire circuit using the surface-mounting method.

Checking the assembled power supply is the most important and responsible part of the work. If the output is 13.7 Volts, then this is quite enough to drive a couple of small speakers.

We connect the radio with a homemade power supply. The yellow and red wires go to the positive, the black to the body.

The above instructions will allow you to select or make a power supply for your car radio with your own hands. It will be useful to watch a thematic video review or photo materials. The price of a computer power supply, as mentioned above, is low and you can even find it at home, in a pile of unnecessary hardware.

JVC KD-R90BT Settings

Setting up a JVC car radio

It is worth noting that the JVC KD-R90BT radio has a fairly simplified version of the settings, which is a big plus for the average user. Many car owners often have difficulty setting up filters. The main feature of this device is the “Easy” function. That is, you no longer need to adjust the frequencies of the speakers, but simply select their size. The program will automatically select the necessary parameters. Among the more professional settings is “DSP”. EQ is a five-band equalizer with optimal settings for a particular genre of music. The DSP system is a detailed adjustment of the transmission of a sound signal to a particular speaker. That is, like a professional studio, you can create a uniform sound field for listeners inside the car.

Thus, we have the following types of settings:

• “Easy” mode (automatic sound settings).
• “EQ” mode (5-band equalizer).
• “DSP” mode (determining sound delay).
• Digital Track Expander mode (which takes compressed tracks to a new level of sound).

You can do the setup yourself. Before starting this process, you need to familiarize yourself with the various photos of similar topics that are available on the Internet. The video will also be very helpful. Usually the instructions are sold as a set and contain a lot of useful information. The price of this service work can be very high.

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How to connect a radio if there is no ACC wire?

If there is no ACC wire, but you need to connect the radio, you can take one step: connect the power wire to the ACC, which will allow you to use the radio without an ACC wire, but at the same time, the GU will drain the battery much faster. Even a non-working radio will consume many times more energy than when connected to an ACC cable.

Attention. When connecting the GU for the first time, be extremely careful when connecting the wires and special attention should be paid to the correct connection of the contacts

Any mistake, be it a bad twist, a short circuit or incorrectly connected contacts, can damage your device.

No sound or noise

This problem can be caused by several reasons, the most common of which are:

• No signal. In this case, the sound disappears or loses volume. Checking the high-level pulse supplied by the fourth pin of IC901 helps solve the problem. If there is no signal, the controller must be replaced. If the sound disappears when you start the engine and adjust the volume, you need to inspect the amplifier contacts.
• No voltage at the base. In this case, the sound fades or disappears completely when you try to increase the volume. This problem is determined by checking the bases with a voltmeter. If the tested parameter is zero, the transistors must be replaced.
• The Mute button is broken. The change in sound quality in this case is due to a controller malfunction. If you have problems with volume control, you need to check transistor Q802.
• Amplifier chips burn out. If there is no sound, you need to inspect all the cables connecting this module to the tape recorder. Repair involves replacing capacitors and microcircuits.

Connection options

Power is supplied to the player using 3 wires: 2 power 12V wires with different polarities (yellow and black) and ACC. The +B contact continuously supplies voltage to the connected equipment, which allows you to save settings even after it is turned off.

Incorrect installation via the cigarette lighter or ignition switch (connection entirely to this element) is indicated by the following:

• a car battery is completely discharged in 2 days;
• the backlight on the radio display flashes involuntarily;
• The player turns off completely when the power is increased.

In case of problems, the ACC contact on the radio should be left on the ignition switch, and the remaining wires should be connected to other elements.

Option #1

In this case, the yellow +B wire is connected through a new 10 A fuse to the contact running from the battery to the fuse block and placed in a random location. The red ACC wire from the radio is connected to the ignition switch to provoke the flow of current to the player by turning the key, and the remaining wire with negative polarity (GND) is connected to the negative terminal of the battery.

This installation option eliminates the possibility of manually turning on the radio, so you cannot listen to music when the engine is turned off.

Option No. 2

In order to use the player regardless of engine operation, the previous circuit is improved with diodes that can withstand a voltage of 15 V (no more than 0.1 A) and the use of a blue REM wire, which is connected to the ACC contact. Diodes are inserted into ACC and REM in such a way as to create a circular power supply circuit for the device. When voltage is applied to the blue wire, the limiting element should return it back to the ACC terminal, breaking the circuit between the ignition switch and REM.

If the connection is correct, the radio can be started manually after turning the key. To save battery life, it is recommended to remove the key from the ignition switch after turning off the player.

Option #3

This circuit does not imply the use of a REM contact, but you will need a five-pin relay to which all existing wires are connected, except for the power GND - it is still attached to the negative contact of the battery or to the body. The option works as follows: turning the key provokes the supply of current from the ACC ignition switch to the contact of the relay winding connected to the positive contact (yellow wire), for autonomous operation and replenishment of the ACC.

The diodes will limit the flow of current, preventing it from returning to the ignition switch, so the equipment can operate regardless of the position of the key.

The second contact of the winding is connected to the negative connector for blocking the engine in the alarm unit.

This will allow you to break the power circuit when you turn on the security system and activate the voltage supply to the radio by turning the key. This option eliminates the possibility of accidentally leaving the player on and saves battery life.

Via alarm

Drivers often wonder if they turned off the music when they went shopping and came home. The principle of connection is that the audio system will be turned on and off by the alarm. This type of connection also reduces current leakage, since when an alarm is set, the radio is automatically disconnected from the power supply. In order to connect you will need two relays with five contacts and a pair of diodes. You can find a specific installation diagram on the Internet for each car, because the type of connection may differ significantly. Since different cars and alarm types have their own color scheme of wires.

Let's save the radio's memory when the power is turned off.

Currently, any car radio (read all about radios here), even a fairly cheap one, has a wide range of service functions, for example: channel balance, tone controls, about 20 - 30 fixed tuner settings, clock, etc. And these configured parameters are required enter into memory. But to save the memory, there is no built-in power source in the radios, and any disconnection of the battery (for example, during welding work on the body, or before a long stay in the garage, turning off the mass with a powerful toggle switch so that the battery does not discharge) erases the memory. And when the power is connected, all parameters have to be restored again.

To get rid of this inconvenience, I propose a simple improvement to the standard electrical circuit for connecting the radio (head unit). You will need to supplement the radio with an additional very low-power power source, for example a 12-volt battery, and if you don’t find a twelve-volt one on sale, you can use 1.5-volt AA batteries. You will need 8 pieces (1.5x8=12). But it’s better to use only three square batteries of 4.5 volts, despite the fact that the total will be 13.5 - exactly what you need, and even a little with a margin (the radio is designed for power up to 16 volts and operates at higher voltages better). Compared to AA batteries, square batteries last three times longer. We assemble the batteries into a block in series, solder them to the wiring contacts, and then put the batteries in a stack, wrap them with electrical tape and hide them in a secluded place under the dashboard, not far from the radio.

In the standby mode of maintaining (saving) memory, the current consumed by the radio is very small, and the batteries will last for a long time. And now, for example, by disconnecting the battery mass during welding work on the body and connecting it again, or returning to your garage from a business trip and connecting your main car battery, you will not need to re-configure the radio (head unit) parameters, since the memory of all settings will be saved . Good luck to everyone!

Source

Wire markings and topography of ISO connectors

Modern head units, as a rule, are equipped with connectors made according to the ISO 10487 standard. However, you can still find both radios and cars in which manufacturers use connectors of the original design. In such cases, the radios are connected via adapters.

ISO adapters are used to connect standard radios to original connectors.

The ISO standard defines the physical dimensions of three pads:

• block A black - power supply and control of the device;
• brown block B - connection of acoustics;
• block C is an optional section for connecting additional devices: navigator, additional amplifier, etc.
  The ISO standard determines the physical dimensions of the radio connectors

Despite the fact that the standard does not establish the purpose of the contacts, many manufacturers adhere to the same color marking of wires and topography (pinout, wiring) of connectors.

Radio began to sound in cars from the beginning of the 20s of the last century. At that time, there were two ways to improve a car: install a truck engine in a passenger car or install a radio in a car. The difficulty of improvement was equal. Car radios did not exist then, so the problem was solved as best they could. Home radios were converted to fit the 6-volt on-board network of the car, or simply ran on batteries. No one thought about sound quality. The home radio in the car did not last long. The constant shaking did its job, gradually destroying the electric lamps. A huge antenna was located under the ceiling, turning the car into a cage.

Igor Syroedov

https://steer.ru/node/29859

Table: pin assignments and color coding of wires of a standard ISO connector

The information given in the table is not exhaustive and completely reliable. You should check the markings of the wires and the purpose of the connector contacts in the documentation before connecting the radio.

Video: topography and disassembly of the ISO connector

What to do

If the head equipment does not save the settings when the ignition is turned off, then it is necessary to remove the product and check the switching circuit. At the same time, the presence of voltage is checked in the circuit to which the cable with a yellow protective layer is connected. On some vehicles, an on-board electrical system control unit is mounted, which de-energizes the circuits some time after the ignition is turned off. In this case, the wire is connected to the positive terminal of the battery, which allows you to remember the settings when the ignition is turned off.

On cars manufactured by VW and GM factories, original color markings of standard wiring elements are used. The yellow cable of the head unit is connected to the red cord, and the wire with the red insulating layer is connected to the yellow wire. A similar scheme is applicable when switching devices manufactured by Alpine. After changing the circuit, it is necessary to check the functionality of the equipment; turning off the contact group in the lock should not lead to resetting the programmed parameters.

Hyundai cars use a standard harness with an ISO standard block. To switch external equipment, an adapter is used with a metal jumper installed inside, connecting the positive cables into a common circuit that goes through the lock. In this case, after turning off the ignition, the car radio will reset the settings to factory settings.

Chevrolet does not use standard electrical wiring for multimedia equipment to separate the positive circuit into two paths. When replacing the standard radio, it is necessary to use adapters that provide power to the memory unit. It is allowed to use car radios equipped with a built-in autonomous power source (for example, a lithium-ion battery). The car owner can make a power supply with his own hands, but he should remember the need to charge the batteries and periodically replace the elements.

Installation in the car

Installation of the radio begins with the removal of the decorative plugs covering the mounting socket in the center console. To mount the head unit, metal clips are used, which are held in the instrument panel by bendable antennae. If the car was equipped with a 1 Din-format radio, and you plan to install equipment with increased dimensions, then a box for small items is removed from the console. It is not possible to install a 2 Din standard player on some machines, or the installation of a new console will be required to accommodate the unit.

To install a radio instead of the original equipment, it is necessary to install adapter brackets that allow you to attach the tape recorder to the power frame of the dashboard. Installing a non-standard radio requires the use of a decorative frame that allows you to fit a rectangular front panel into a hole with beveled edges or rounded corners (depending on the type of car). The additional element is installed by hand and does not require modification of standard parts from the machine.

Connecting speakers

Connecting the radio to a car equipped with standard acoustics does not require laying patch cables. The owner will need to directly connect the plugs to the mating connectors on the head unit or use an adapter. If speakers are installed simultaneously with the installation of multimedia equipment, then signal cables will need to be laid. Depending on the design of the car, acoustics are installed in the doors, instrument panel or shelf located behind the back of the rear row of seats.

To connect the acoustics to the head unit, a special-purpose stranded copper wire coated with an elastic insulator is used. On the speaker body there are positive and negative contacts with symbols. The connection diagram for the car radio provides for connecting loudspeakers in compliance with polarity; connecting negative cables into a common bus is prohibited. Since the wires come without a chip, it is necessary to provide a plug that will ensure a reliable connection.

Antenna connection

Once the power cables and speaker patch cords have been connected, the antenna plug should be reinstalled. On some cars, the cable with the connector is folded deep into the instrument panel; the owner needs to pull the cord to the installation site himself. Standard antennas are equipped with frequency filters that eliminate interference and increase the range of signal reception from repeaters. The factory unit is connected using a plug that is installed in the mating socket on the back of the car radio.

If the car is not equipped with an antenna, then many owners connect an active type device that is mounted on the windshield. The built-in amplifier requires power, which is provided by the output in the player's jack, marked AMP or REM. After connection, the junction point is protected with insulating tape. At this stage, the procedure for installing the radio in the car ends; the owner can test the operation of the equipment.

Connecting a car radio

When connecting the radio, you must strictly follow the diagram. To power the car radio, you need to connect the yellow wire to the battery positive. The black wire goes to ground, this is grounding. The red wire is powered from the ignition switch. Ideally, it should be connected so that it is powered only when the key is in the ACC position.

Since installation difficulties arise precisely in the absence of an ISO adapter, all wires must be stripped and then insulated. Stranded copper wires with silicone insulation are ideal. Once the wiring is complete, they can be combined into a standard adapter, but you can also insulate them with the radio wires. The main thing is that the color of the wires of the radio and the car match each other.

It happens that the yellow and red wires are connected to the battery. The advantages of this connection are that the radio is always in standby mode and ready for use. However, this method quickly lands him. Therefore, it is worth thinking about what is more important: the operation of the radio independent of the ignition switch or the long-term operation of the battery?

Connecting speakers

The colors of the radio speaker wires have already been described above. Therefore, in accordance with them, you can safely connect any speakers.

Today, almost all car radios are oriented towards 4 speakers: two in front and two in back. It is worth noting that a powerful audio system has a plus and minus output to each speaker. A weak audio system has only a positive output. Therefore, the minus from the column is displayed on the total mass. To get better sound, it is best to observe the plus and minus contacts.

If poor sound quality occurs after installation, there is a simple and effective way to make the connection correctly. You need to transfer the sound to the front speakers, then transfer the sound to one speaker, for example, the left one. Turn on the music at full volume until wheezing or distortion appears. After that, transfer the sound to the 2 front speakers.

If the sound becomes louder and remains of high quality, then the connection is made correctly. If there is no change in volume, or distortion appears, then you need to check whether the plus and minus are connected correctly.

As you can see, connecting a car radio based on the color of the wires is not difficult and, with a careful approach, will take no more than 2-3 hours.

I mixed up the wires once when I connected the speakers. I don’t know how this happened, most likely just carelessness. As a result, the speakers worked out of phase and jammed each other, causing the sound to deteriorate greatly.

In my car, the left speaker of the radio is very wheezing. Maybe this is due to the fact that I connected the radio itself incorrectly? I'm not sure if it's connected correctly, since this was my first time doing this, and I could have messed something up.

Oh, and a puzzle - these wires. About 6 years ago I bought a Pioneer from a friend with protruding wires. He assured me that I would quickly figure it out and everything would connect fine. I struggled all day, but finally did it. I wouldn’t do such an experiment now.

Tell me, why does my car radio turn off when I turn on the headlights?

The drawdown is big. Try putting a thicker wire on the “+” or installing a more powerful capacitor (larger capacity) in the radio.

I connected the radio for the first time in a 1988 Toyota Corolla. The radio was Pioner DEH-X3500UI. The wires in the car were of the old type, you had to buy an adapter and solder the wires from the car to it, the problem with the car was that the wires were not the same color, not according to the instructions, there were pink, blue and all solid colors. I found an old manual on the Internet and found which wire was responsible for it, soldered everything, connected the radio and everything worked, I had no experience in connecting at all, since it was my first car and the first radio I bought, as they say, the eyes are afraid - the hands do!

How many amperes is the fuse in the FUSIOL radio?

Usually they cost either 10 or 15 amps

Guys, hello everyone. I recently bought an Epic 10 year old. It already had a Chinese radio on it, I want to install the original one, but the chips were cut off by some deb......m, who wouldn't mind if you could send me a diagram of how to connect it. by wire color

Well, why is there no mention in the diagrams and texts of the wire (steering wheel cont...), which is intended for connection to possible steering wheel radio control buttons.

Sony car radio connection diagram

The connection diagram for a Sony car radio implies the correctness of actions, knowledge of the purpose of the connectors and much more. This article will tell you how to install and connect car radios from this company. Sony car radios and a connector connection diagram are all that is needed to carry out the process correctly.

Setting up the radio

The main settings of the head unit include:

• menu language selection;
• disabling the demo screensaver;
• programming radio frequencies;
• setting the operating parameters of external players switched through the AUX port;
• adjusting the balance between speakers;
• setting frequency cutoff parameters (not available for all radios).

If an additional amplifier is used in the design of the car's speaker system, then you need to disable a similar device in the radio. Such manipulation is not required for all devices. Then the parameters of the external device are separately configured (in accordance with the instructions). Do-it-yourself settings and installation do not require special knowledge, but if the user is not confident in his own abilities, then it is recommended to visit a service center that installs speaker systems in cars.

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When installing a car radio, it is useful to know

During the process of installing and connecting a radio in a car, non-standard situations often arise that cannot be foreseen in any instructions.

So, if you use a standard car antenna when installing a car radio, then sometimes the length of its wire may not be enough. Many cars are still equipped with antennas designed to install old-style radios. Their antenna socket is located on a “tail” that is only about fifteen centimeters long.

In this case, you can try to connect the antenna blindly after connecting all other wires to the radio. If this fails, then, most likely, you will have to remove the console and insert the antenna plug by touch after installing the car radio in the container.

By the way, after about half an hour of this “Kama Sutra” you will probably begin to think about buying a new car radio antenna.

If it becomes necessary to remove a car radio with a removable front panel from the container, you will need to insert two flat keys included with the radio onto the sides of it until they stop. But before that, do not forget to remove the front control panel - it is usually detached with the “Release” button.

Size and types of car radios

Universal radios have a standard size, it can be 1 – DIN (height 5 cm, width 18 cm) and 2 DIN. (height 10 cm, width 18 cm.) If you change the radio from large to small (from 1 – DIN, to 2 – DIN), you will need to buy a special pocket that will cover the missing din. In terms of connection, these radios all have the same connector, its name is ISO or it is also called a Euro connector.

Standard radios are installed on cars from the factory and have a non-standard size; in this case, there are two options for installing the radio. The first is the simplest, you purchase the same standard radio and install it, it fits in size and connects to the standard connectors. But the cost of these radio tape recorders is often inadequate. And if you find a budget option, then with 100% probability it will be from China, which is not particularly famous for its sound quality and reliability.

The second option is to install a “Universal” radio in place of the standard one, but for this you will need an adapter frame, which is an adapter from the standard sizes of the radio to the universal ones, i.e. 1 or 2-DIN. the frame plays a decorative role, covering extra holes.

If your 2 din radio has an LCD display, then you can connect a rear view camera to it, and we discussed in detail how to do this in the article “connecting a rear view camera”

Hint for TOYOTA owners. In most cars of this brand, the standard radio has a size of 10 by 20 cm. In this case, you can look for “Spacers for Toyota radios”, they are 1 cm in size and you can easily install a standard-sized radio, i.e. 2 – DIN, to install 1 – DIN you will still need to buy an additional pocket.

What does ACC mean on the radio?

Power to the car radio is supplied by two wires: power with a voltage of +12V yellow, black with a voltage of -12V. The ACC wire (also called signal wire) acts as a control wire and if it is not powered, the GU will not start. The ACC wire on the radio will be energized when the key is turned in the ignition switch.

The +B power wire has a constant voltage of +12V and allows you to store the necessary information in the car radio's memory (station frequencies, last played track, etc.) Unlike +V with a constant voltage, a signal is supplied to the ACC signal wire only when the head unit is running.

Rechargeable battery for powering the car radio

Another possible power source is a rechargeable battery. Not just the one for cars, but like the one for screwdrivers or other equipment. You can also supply power from an old car battery, but this is an option for the garage. At home we need something more environmentally friendly and safe.

Connection diagram of the car radio to the battery

There are, of course, ready-made units with a voltage of 12 - 14 volts. Ideal if you have other battery-powered equipment or an old case from a non-working battery with sagging banks. If it does not hold a charge, you need to change banks. Read more about this assembly in the article about battery restoration.

Fuse

To connect the “plus” of the radio, you will need a stranded copper wire with a cross-section of at least 4 mm2. Its length should be as short as possible - without unnecessary zigzags and other things. Connecting a Sony car radio always implies the presence of a fuse on this wire with a rating of 10-20 amperes with good insulation.

It is usually installed at a distance of 50 cm from the battery terminal. Sometimes such a fuse is already provided by the manufacturer, and some of the hassle is eliminated. The negative wire should also be as short as possible.

The wires must be laid extremely carefully, without any twisting and as far as possible from third-party energy consumers such as an alarm system or a trip computer

It is important to note that these wires need to be connected only after all speakers are completely connected and insulated. Never allow the exposed “plus” to touch other devices.

It must be “tightly” insulated.

Auxiliary antenna

Before you connect the antenna to the radio, you should know that there are two types of antennas - passive and active. Passive connects literally in one step, you just need to insert the plug into the required place. But with the second one you will have to tinker a little, connecting power to it. Usually, tape recorders nowadays have a special output. The output is usually a blue wire designated ANT, REM or AMP. In some cases there are two wires. These wires turn on the devices that operate when playing the audio system. This device is an antenna.

Of course, there are other methods on how to properly connect a car radio, high-quality analyzes described in the manuals.

Selection of connecting wires

Installing audio leads is different from normal electrical connections. The fact is that an alternating sound signal propagates through the conductors going to the speakers and speakers. It has a frequency ranging from 20 Hertz to 20 kilohertz. In principle, the frequency is low, but linear distortions, electromagnetic interference, and interference are possible. They degrade the sound quality. Therefore, along with observing the rules for choosing the cross-sectional area of ​​the wire, the type of conductor is selected.

The cross-section is usually chosen from the following consideration: for every 10 watts of amplifier power - approximately 1 sq. mm of wire cross-sectional area. That is, with a radio power of 40 watts per channel, the cross-section of the conductor leading to the speaker must be at least 4 sq. mm.

You should think about choosing the type of speaker cable if the radio is capable of providing high-quality sound. On the Hi-end equipment market you can find many different speaker cables with unique parameters and prices.

The feasibility of installing such expensive conductors for a middle-class car radio is zero. The main thing when connecting is to ensure that the phases of the speakers and speakers are synchronized. Otherwise, the interior will be filled with cacophony instead of high-quality sound.

Installation of a new device

Using an adapter

To insert the body of the new car radio into the dashboard niche, you need to repeat the dismantling operations in the reverse order. In new cars with “audio preparation”, it is enough to compare the connectors of the head unit and the car wiring of wires from the battery and speakers. Each of the well-known car audio brands uses connectors of its own design, which differ in configuration

If the connectors of the car electrical wiring and the new car radio match, it is enough to connect them and insert the head unit housing on the slide into the niche. For mismatched connectors, you will need to purchase an adapter, which is available for all models of car speakers.

To find an adapter in retail or at a car market, you cannot remove the connectors from the car radio. The easiest way out would be to photograph both connectors and write down the exact markings of the car radio model.

Connection without connector and adapter

In order to independently connect the wires if there is no connector in the car’s speaker system, you need to remember the color pinout of car speakers, which is used in standard systems.

The following are connected to the car radio:

• yellow cable (from the positive terminal of the battery),
• black wire to vehicle ground, red (to ignition switch).

Wires of the following colors and purposes depart from the head unit:

• purple (plus right rear speaker);
• purple with black stripe (minus right rear speaker);
• gray (plus right front speaker);
• gray-black (minus the right front speaker);
• white (plus left front speaker);
• white-black (minus left front speaker);
• green (plus left rear speaker);
• green-black (minus left rear speaker).

Expensive car radios use non-standard connectors with additional outputs.

The head unit can be equipped with the following outputs:

• MUTE (mute function, can be automatically associated with connecting the “hands free” option);
• REMOTE (used to connect an external amplifier, additional speakers, subwoofer to the head unit);
• ANT (regulates the automatic extension of the car antenna in cars equipped with such a device);
• ILLUMINATION (reduces screen brightness when driving, when stopped, increases display illumination for ease of adjustment).

If you feel that you cannot figure out the complexities of connecting an expensive device on your own (there are no Russian-language instructions for the car radio), it is better to contact a specialized car service.

You can see in detail how to properly connect a car radio in the video:

https://youtube.com/watch?v=kN1biKA0QFM