Car siren for alarm: schemes for converting a standard one and installing an autonomous car alarm

At the first stage, when a theft is committed, they try to neutralize the devices that emit an audio signal. It is very easy to disable the standard siren of car alarms offered by most companies - just cut the wires going to the siren module. The same applies to a car horn. In the absence of harmful factors, you can safely tinker with the engine, try to bypass the immobilizer protection, etc. The alarm will send an alarm message, but the siren will be “silent” all the time. However, there is a variety of devices that can continue to “spoil the hijacker’s nerves” even in the absence of power. They will be discussed further.

Features of installing autonomous and non-autonomous sirens

Several installation schemes for autonomous and non-autonomous sirens can be used on cars:

If a car owner decides to convert the warning system from an autonomous siren to a regular one, then he may be faced with two connection options. When installing a conventional siren instead of a stand-alone one controlled by a positive signal, it is necessary to connect the power of the conventional device to the control wiring. The cable of the autonomous siren cut off at point “A” is insulated. The second wire of a simple siren is output to the body.
If an autonomous siren was controlled via a negative wire, then a regular siren is connected using a different circuit. The negative terminal is connected to the negative trigger wire, and the positive terminal is connected to the power wire of the autonomous device.
To ensure protection against disconnection of the main alarm key fob connector, it is necessary to upgrade the block. An additional jumper is installed inside the printed circuit board. When the plug is disconnected from the unit, the autonomous siren will turn on and run on its own battery.
You can simultaneously use sirens of different types on one alarm system. A non-autonomous alarm device is connected via an additional relay and is protected by a separate fuse. In total, up to five sirens can be installed in parallel connection.

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Installation diagrams are shown below.

How to install a car alarm yourself

Any car owner thinks about how to protect their car from theft or break-in. One option for this solution is to install an alarm system on a car.

Experts say that there is nothing complicated in installing an alarm system on a car. If the owner knows how to use a screwdriver, a soldering iron and is versed in electronics, then, using the instructions, he will be able to independently install a car alarm on his “iron friend” with almost no problems.

How to control a car siren

The car siren is controlled in several ways:

An "external" alarm siren can be controlled by a low-current negative output. To do this, the Negative Trigger wire is connected to the control output, and the second “trigger” is isolated. It is recommended to connect the second control cord to ground.
To control the positive polarity, a cord in white insulation is located inside the siren loop. It must be connected to the output of the main unit. As soon as voltage appears on it, an alarm will sound.
A high-frequency radio channel can also be used to transmit the control signal.
The operating mode of the autonomous siren is selected by turning the lock located on the rear surface of its body. Depending on the position of the key, the device will work either autonomously or from the vehicle’s on-board network.
Non-autonomous sirens are controlled using power wires.

Connecting a car alarm yourself

For perfectionists, you can prepare black electrical tape so that it does not differ from that used in standard wiring. When connecting, an additional relay is required. You just need to carefully understand the connection diagram supplied with the equipment. Before connecting the alarm sensor, you need to disassemble the left pillar. It should also be taken into account that this component should not be affected by dampness and high temperatures, so it is better to place it away from the engine itself. All information is transmitted via communication satellites. In such cases, you have to individually understand the circuitry of each car. Many of them can block the engine, preventing unauthorized start attempts. To prevent moisture from entering the unit, it is recommended to install it in such a way as to prevent water drops from flowing down the wires into the housing. The main practical aspects of panel dismantling operations can be viewed in detail in the video at the end of this article. Do-it-yourself alarm installation The modern realities of our lives make the installation of a car alarm one of the most pressing problems. Route the wire through the guard This wire will connect the car alarm to the siren.

Types of central locking elements

To begin with, the unit is put into service mode, which allows for maintenance of the device. Finally, it should be noted that there is a significant expansion of service capabilities for this type of equipment: remote engine start, turbo timer, engine idling to cool the turbocharger after parking and arming, sunroof window closer, if available - automatic raising of windows if they were open, special modes interior lighting and much more

It is important that you insulate this wire with rubber gasket or fill the hole with silicon

Possible engine blocking schemes are given in the installation instructions for the StarLine universal wireless blocking kit. Installation of a car alarm system to the central locking system. The signal will be transmitted through the glass without the need for drilling holes and repeater wires directly to the antenna wire of your alarm module.

Maximum load current mA. It often helps to run the wire near the heater core hoses, power amplifier wire, ignition power supply, or any other wire going to the other side of the guard. We install an alarm on a VAZ 2110, part 1

We install an alarm on a VAZ 2110, part 1

How are car alarms installed?

Basic principles for installing car alarms

All modern cars are very dependent on electronics. The car is filled with electrical consumers and wires connecting them to the battery. Can you imagine that there are about 30-40 kg of wires installed in your car? It is because of such a large amount of electronics that installing an alarm can be a nightmare for an unprepared person. To avoid mistakes, we are guided by the following principles:

Reliability of operation The security of the car directly depends on the secrecy of the alarm unit, the installation location of the siren and many other factors. To protect the alarm unit, we hide it in the most hidden corners of the car - so car thieves will have to look for it for a very long time, even if they get into the car's interior. All wires and interlocks are hidden in the standard wiring - it is much more difficult to find several necessary wires if they are hidden in a large braid of similar wires. We install sirens so that intruders cannot turn them off from under the car. All these and many other factors are taken into account by our specialists when protecting your car.
Minimal interference with standard wiring The golden rule of installation: “less is more.” We don't run unnecessary wires or connect things that don't need to be connected. If it is possible to implement any functions via digital buses instead of an analog connection, we use this opportunity rather than running new wires throughout the car - there are already enough of them. The alarm should not interfere with the correct operation of all other electronics in the car. When installing an alarm, we make sure that it is a pleasant addition to your car, and not an unnecessary problem on your head.
Quality Almost all connections to standard wiring are made by soldering. The correct operation of the entire alarm depends on the reliable connection of the wires, so we carefully solder each connection so as to eliminate any breakdowns or malfunctions. In addition, much depends on the quality of the wire insulation. We exclude any interference with the operation of the alarm system by using electrical tape and heat shrink as insulating material. No external factors will jeopardize the safety of your car - we have taken care of that.

How is an alarm installed?

Installing an alarm system is a complex multi-stage process, however, for the experienced craftsmen of our installation center it does not pose any difficulty. Quite the contrary, for them it is a creative activity - to find the most reliable way to protect the car and outwit all the thieves.

Preparation for installation The first stage is very important - preparation for installing the alarm. At this stage, the technician disassembles the plastic trim of the car at the front of the car to find the best location for the alarm unit. It is very important to choose the most secretive and hidden place to ensure the operation of the alarm unit, and therefore the alarm system as a whole. At the same time, the technician needs to take into account the distance to the connection points to the standard wiring - you can’t hide the alarm too far, because then the wires may not reach and you’ll have to build them up, which means extra wires and extra soldering (see point 2 of the installation principles). When the master has chosen the optimal location, he prepares the alarm for installation: he connects the wires to the block, collects all the wires in one braid so that everything fits neatly and organically into the car’s wiring.

Alarm installation Next, the installer installs the alarm unit in the selected location and secures it firmly so that nothing dangles or rattles. Usually the wires are connected in the interior first, and then under the hood. In the cabin, the alarm system is connected to a digital bus (CAN/LIN), and if there is none, in an analog way to each device: central locking, dimensions, and many others. When installing an alarm with auto start, the alarm is also connected to the ignition. In the meantime, a hood switch and a siren are installed and connected under the hood; the siren must have its horn facing down - this way water will not flow into it.

Check When everything is connected and installed, before putting everything back together, the technician checks the operation of the alarm for errors and malfunctions. We carefully test each alarm function as if we were using it ourselves. After a thorough check, the master hides all the wires in standard braids and assembles the car trim. The installation is complete - now your car is under reliable protection.

Why should you choose us?

Installing an alarm is not an easy task and requires extreme care and precision. Most installers approach this with disdain, forgetting the original purpose of their work. We always remember that our task is to reliably protect your car from theft, which is why we are so careful when installing car alarms. Our craftsmen are an example of competence and attention to detail. It is important to us that your car is protected.

KIA Rio 2011 - electronics

Kia Rio, 2011

Comments 121

Hello, I want to install everything using your method, I have no experience in this, I looked and have questions. 1. Do I need a ground wire if I initially have a U-shaped metal part on which the signals are installed. 2. You don’t show here how you installed a 15A fuse on the power one (I would like to see it or a comment - did you use a remote unit for the fuse in a single number?). I would be very grateful for tips)

1. No wire needed. 2. Yes - separate fuse block (sealed).

Should it be that one horn shouted louder than the other? Or should they shout equally?

Why install an additional relay when the standard one is installed?

I also replaced the regular ones... BB, BB, it's just fire... They're honking, Mom, don't worry...

The wires are musical, they will rot quickly. I installed a powerful one from under the ignition and a powerful relay, the signal is very good

How does the signal work? Is everything normal? The question is just that the relay has enough mass from the standard minus?

Everything works fine - I’m just thinking about changing the low tone - somehow it started to work after a while. So the negative signal goes to the relay only from the standard signal. The minus and plus of the standard one - they only close the relay - there is no load. And the mass goes directly to the signals.

Well, the signals, I understand that they are powered separately) I have a Volgo on my classics)

How to control the Starline SB-20 car siren operating on an autonomous basis

In addition to the wires intended to provide power to the system (these are black and red wires), there are two additional wires on the cable loop. They are intended for control. These are a white wire called PositiveTrigger and a blue or brown wire called NegativeTrigger. The device (in this case we worked with the Starline SB-20) will work, starting to produce signals that counter theft, but the following conditions must be met:

There is no voltage of twelve volts on the red wire;
Power is supplied, but the Positive Trigger cord was connected to a positive voltage;
The Starline autonomous siren was provided with power, the Negative Trigger was connected to ground.

The signaling device is capable of changing the state in which the autonomous siren operates. This means that you can activate it if necessary.

Schematically, the Starline SB-20 car siren looks like this:

The diagram shows the structure of the main Starline connector

There are a pair of auxiliary outputs that operate at a voltage of three hundred or four hundred mA. One such output is programmed using a special method: an external siren is connected, the output hole is connected to ground (or uses a twenty-volt current). The programming process is carried out on an independent basis, after the connection is made

However, be careful because only one of the auxiliary channels needs to be programmed. The main thing is not to make a mistake when connecting

Musical MP3 siren for alarm - talking car