How do I change the sound of my cars horn?
We may not be able to change our singing voice (sorry, karaoke fans) but we can alter the voice of our car or truck. Vehicular horns are a piece of safety equipment, intended to warn another driver or an errant pedestrian of an imminent collision or other danger. While there are also certainly times that theyre used to indicate our displeasure, They can also say, with a quick double-tap, a less-threatening you may proceed or even goodbye!  Often the region of origin of an automaker and the price-point of a particular model can determine the horn types, and sounds, used. Metallic-sounding disc horns are more traditionally associated with Asian imports (and motorcycles) while conventional snail-shaped horns were once more common in domestic and European models but are now found throughout the industry. Less expensive models often have only one horn, but two  usually a high/low tone combination  is more common. For a while, a few high-end domestic models featured four. Since most horns are operated by a switched 12-volt power feed, adding a second horn, or changing the sound (or just sound level) is normally straightforward, though having basic mechanical skills is necessary to do it yourself. In some cases, pre-made solutions exist; the Subaru WRX is one model where upgrading the horns, and positioning them behind the grille so theyre visible, is so popular that several aftermarket companies sell direct-fit brackets, wiring adapter harnesses and even complete assemblies. For the rest of us, expect that youll need to cut and join wires to accommodate for different electrical connector types. Start by locating the original horns and determining their wiring hookup and how they mount to the vehicle. Note that the removal of some trim parts or components may be necessary to access your factory horns. A bracket secured with a single bolt is typical, though individual horns may be held to the bracket with a nut; many replacement horns will fit such brackets directly. The use of different style horns may require custom-made mounts or even relocation and should be given consideration. Pay attention to orientation of the new horns so that the opening of a trumpet wont cause it to fill with water or dirt, or that the horn contacts the bodywork. You wouldnt want your cars new voice to be hoarse.