The desire to stand out in a crowd of cars is common to many car enthusiasts, and one of the most accessible ways of personalization is beep. The standard horn that comes with cars from the factory often sounds quiet and inexpressive, blending in with the general city noise. That's why cool sound signal for cars is becoming a popular solution for those who want their appearance on the road to be noticed not only visually, but also audibly.
The modern market offers many options, from powerful pneumatic systems to electronic modules that reproduce melodies or voices of famous characters. However, simply replacing a standard device with a non-standard one requires an understanding of the vehicle's electrical circuit and compliance with safety rules. Incorrect connection of a powerful signal without installing an additional relay can lead to wiring burnout or failure of the steering wheel button.
In this article we will look in detail at what types of signals exist, how to choose a really high-quality and loud option, and also consider the nuances of their installation. You'll find out why pneumatic signal is considered a loudness standard and what legal restrictions exist for the use of non-standard sound effects on public roads.
Types of non-standard sound signals
The first step to upgrading is choosing the type of device. All non-standard signals can be divided into several main categories, each of which has its own design and sound features. Electronic options are the easiest to install, as they often have dimensions similar to standard ones and operate on standard on-board voltage.
More complex systems, such as pneumatic ones, require the installation of a compressor and a receiver, which takes up significantly more space in the engine compartment. Music signals, often called "turntables," are electronic units with a speaker that can play recorded tracks or generate tunes in real time.
- 🚗 Pneumatic: They produce a powerful, booming sound that imitates the whistle of a train or steamship and require a compressor.
- 🎵 Musical: reproduce melodies, voices or special effects, often have a control panel or settings via a smartphone.
- ⚡ Electronic polyphonic: compact devices that simulate the sound of several horns simultaneously without the need for a compressor.
⚠️ Attention: The use of signals simulating special equipment (police, ambulance, fire) is prohibited by law in most countries and may result in confiscation of the device and a fine.
When choosing, you should take into account not only the volume, measured in decibels, but also the timbre of the sound. A sharp, shrill sound can irritate others and even frighten pedestrians, while a low-frequency, bass horn is perceived as more authoritative and less aggressive. Chinese manufacturers They now offer a wide range of models, but their durability is often inferior to branded counterparts, such as Hella or Bosch.
Advantages and disadvantages of musical beeps
Musical signals occupy a special niche in tuning. Their main advantage is the possibility of self-expression. The owner can choose a sound that he associates with a specific event, brand, or simply lifts his spirits. However, such devices also have significant disadvantages that you need to be aware of before purchasing.
The main problem with cheap music signals is the poor quality of the speakers and electronics. In cold or high humidity conditions, the cheap plastic housing can crack and the speaker can wheeze. In addition, complex electronic circuits are sensitive to voltage drops in the on-board network, especially when starting the engine.
On the other hand, high-quality models have standard protection against moisture and dust IP67 and are capable of operating over a wide temperature range. They are often equipped with a volume control, which allows you to adapt the signal to specific operating conditions.
- 🔊 Pros: uniqueness, possibility of remote control, high level of customization.
- ❄️ Cons: sensitivity to cold, risk of rapid battery discharge with frequent use, difficulty in repair.
- 🔧 Nuances: require more careful handling and high-quality contact insulation.
Required tools and materials for installation
Installation additional signal or replacing a standard one requires a minimum set of tools, but preparation must be thorough. You will need not only a screwdriver and wrenches, but also specific materials to ensure reliable electrical contact.
Particular attention should be paid to the wires. The standard wiring leading to the signal often has a cross-section that is insufficient for powerful consumers. Therefore, the use of an additional relay and thicker wires is a safety requirement.
☑️ Installation tools
To attach the device itself, especially if its dimensions differ from the standard ones, clamps, brackets, or even the services of a welder to make an adapter plate may be required. It is important to think about the installation location in advance so that the signal does not heat up from the engine and does not become clogged with dirt.
Step-by-step instructions for connecting via a relay
The most important step is the electrical connection. Direct connection of a powerful signal to a standard button on the steering wheel is unacceptable, since the button contacts are not designed for high current. Scheme using 4 pin relay solves this problem by taking the main current directly from the battery.
First you need to find the standard wires going to the signal. They are usually located behind the bumper or in the fender well. Disconnect the standard signal and check the wires with a test lamp or multimeter while pressing the steering wheel button. One wire will be “positive” (control), the second will be “ground”.
Relay connection diagram:Pin 85: Ground (vehicle body)
Pin 86: Positive wire from the standard signal button
Pin 30: Plus directly from the battery (via a 10-15A fuse)
Pin 87: Plus, going to a new powerful signal
After connecting the wires, be sure to insulate all twists and connections. Use heat shrink tubing for maximum sealing. Check the operation of the system before final assembly: the new signal should turn on when you press the standard button.
What to do if the signal works constantly?
If the signal buzzes immediately after connection, it is possible that pins 86 and 85 on the relay are reversed, or there is a short circuit to positive in the control circuit. Check the connection diagram and integrity of the wire insulation.
⚠️ Attention: Before starting any electrical work, be sure to remove the negative terminal from the battery to avoid short circuits and electric shock.
Features of installation of pneumatic systems
Installing a pneumatic signal is a more complex process that requires placing a compressor, a receiver (cylinder) and the “pipes” themselves in the engine compartment. The compressor must be protected from water, so it is often hidden in a plastic box or installed in the cabin, if the design allows.
Pneumatic system pipes should be routed away from hot engine parts and sharp body edges. To attach the pipes, it is often necessary to drill additional holes in the body or bumper, which requires anti-corrosion treatment of the edges.
| Component | Function | Installation Requirements |
|---|---|---|
| Compressor | Air injection | Moisture protection, access for maintenance |
| Receiver | Pressure accumulation | Sturdy mounting, corrosion protection |
| Solenoid valve | Air supply | Proximity to signal, tightness |
| Pneumatic signal (pipe) | Sound generation | The bell is directed downwards (away from the water) |
| Pressure switch | Pressure control | Setting the on/off threshold |
It is important to set the pressure switch so that the compressor turns on in a timely manner, but does not work constantly. Adjusting the tone of the pneumatic signal is often possible by changing the length of the socket or the position of the membrane inside.
To protect the pneumatic system in winter, install a dehumidifier in front of the compressor to prevent condensate from freezing in the pipes and blocking the operation of the valves.
Legal aspects and security
Installing non-standard signal, you must remember the Rules of the Road. According to traffic regulations, the vehicle must be in good working order and its horn must be working. However, the use of signals not provided for by the vehicle design may be regarded by the inspector as a violation, especially if the sound imitates special signals.
The volume of the signal also matters. Excessively loud sound (above 105-110 dB) may be considered a noise nuisance to other road users. In the event of an accident or inspection, the presence of non-standard equipment may be a reason for a more thorough inspection of the vehicle.
Safety of use lies in the fact that the signal does not distract the driver himself and does not frighten pedestrians into a state of stupor. Musical signals Best used off public roads or in situations where attention is needed but the standard horn cannot be heard.
- ⚖️ Law: The installation of special signals (blue/red light, siren sound) is prohibited.
- 🔊 Volume: The recommended limit is up to 110 dB to avoid causing acoustic trauma.
- 🚦 Etiquette: Do not use the signal to express emotions or greet acquaintances in heavy traffic.
The main goal of installing a new signal is to increase safety due to better audibility, and not to create discomfort for others.
Is it possible to get a fine for a music signal?
Yes, you can. If the sound of your signal is identified as a special signal or if its use is regarded as disturbing the silence or creating a dangerous situation, the inspector has the right to issue a fine. In addition, the car may not be allowed for maintenance.
Does the new signal drain the battery too much?
One short beep is not critical. However, pneumatic systems with a compressor consume significant current during inflation. If you frequently use the horn while the engine is off, the battery may be discharged.
Do I need to register the installation of a signal with the traffic police?
Making changes to the design of a vehicle, which includes the installation of non-standard equipment that affects safety (including sound), formally requires registration. In practice, this is rarely checked, but in the event of a serious accident, questions may arise.
How to protect the signal from water in the sink?
Use devices with protection class IP67 or higher. Additionally, you can make a protective casing from plastic, leaving the sound output holes directed downwards. Check the condition of the contacts regularly.