The air horn compressor relay wiring diagram consists of two main components. The first is the circuit, which serves to provide the power to both run the compressor and activate the horn when its button is pressed.. Learn how to wire a relay for an air horn with a clear and easy-to-follow wiring diagram to ensure safe and efficient installation.
Once you have identified the correct wire from the relay, reroute this wire to the positive terminal of the air compressor for your new horns. Depending on where you mount the compressor, you may have to splice an extension wire onto this wire.. Do you need some help wiring an air horn for your car? Installing a new air horn on your car could be easy, but the wrong execution can blow a fuse or damage your air horn. Today, I will teach you how to wire an air horn using a relay. This is the safest way; I will use the air horn wiring diagram below to teach you.