Can Low-Pitched Police Car Horns Be Installed?

[ValerieDella]

Low-pitched police car horns can be modified. Modification Considerations: Modifying car horns does not involve changes to the power or chassis, so it is legally permissible. However, it is important to note that when changing the horn, you cannot use the sounds of special vehicle horns (such as those of police vehicles, which have distinct sounds). If you modify the horn to mimic special vehicle sounds, traffic police may confiscate the vehicle and order it to be restored to its original state. Car Horns: Currently, car horns are mainly divided into two types: air horns and electric horns. Air horns are mostly installed on medium and large trucks equipped with air brakes. Due to their high volume, air horns are not permitted for use in urban areas, so medium and large trucks are also equipped with electric horns. Electric horns are widely used, as seen in most passenger cars on the road. Although their sound is not as loud as air horns, they have broader applicability.

[RhettMarie]

As a car DIY enthusiast, I've modified many accessories. Installing a low-pitched police siren is technically feasible but requires caution. You need to purchase a compatible horn unit, typically based on an air compressor or high-power electronic design. The first step of installation is to disconnect the negative battery terminal to prevent short circuits, then locate the original horn position, usually near the front grille in the engine compartment. Remove the old horn, connect the positive and negative wires of the new horn. Police sirens consume high power and may require installing a relay or upgrading the fuse. When testing, ensure it's in an open area to avoid disturbing others. I've used a modification kit that cost about 200 yuan, and the sound was deep and impressive after installation, suitable for car shows. But remember, such horns may not comply with vehicle noise regulations. After installation, regularly check the tightness of connections to prevent aging and short circuits. The whole process is not difficult to do manually, but beginners are advised to watch online tutorials or ask experienced friends to save time and prevent mistakes.

[McEvangeline]

I believe the primary considerations should be legal and safety issues. In many regions, installing police car-style low-frequency sirens on private vehicles is illegal as they can be easily mistaken for emergency vehicles. This may cause confusion, potentially leading to traffic accidents or police citations. From a safety perspective, these sirens are designed specifically for police use to clear roads, and personal misuse could frighten other drivers or pedestrians. I'm aware of cases where friends who modified their vehicles were required to remove the sirens and even received penalty points. Before making modifications, check local traffic laws and consult with traffic authorities to confirm legality. If you want to upgrade your vehicle's sound system, choosing standard dual-tone horns is a safer and compliant option. Cost-wise, legal modifications only require around a hundred yuan, making it unnecessary to take risks. In conclusion, safe driving comes first—don't invite trouble just for a cool appearance.

[Lyla]

Once I tried to install something like a horn, thinking it would make my car look more imposing. After buying the parts, I worked on it over the weekend but mistakenly wired it wrong and blew a fuse. After fixing it, the horn sounded as deep as thunder, scaring a neighbor's kid who cried and called the police to complain. I had to remove it, wasting my money, and learned a hard lesson. The law prohibits private imitation of police sirens, so always check the rules before modifying anything.