How To Wire Up & Install Your Air Horn Kit

Have some new air horns you need to install? My video explains all you need to know about correctly wiring them up so they'll perform amazingly well for the long haul! I explain all the appropriate wire setups and offer free info on specific wiring too, Just send us an email to:


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See my latest train horn install here: youtube.com/watch?v=NxWaFYOH8LE
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How To Wire Up & Install Your Air Horns Kit
Okay, so you've got the air horn. Now it's time to mount it and hook it up. These instructions may be slightly different depending on which model you choose:

Find a good spot under the hood to install the horn(s). The ideal mounting position is towards the front of your vehicle, and pointing a bit downward so that water doesn't collect in the horn.
Mount the horn to your vehicle, using the supplied mounting hardware and screws.
If necessary, install the included compressor to your firewall or a fender.
Hook the compressor up to the horn with the included tubing, making sure it's securely located and free of kinks.
Track down the factory horn wire and test it. Your multimeter should show 12 volts when the horn is pressed, and 0 when it's off.
Connect the relay to the horn wire, hook the compressor up with 12-volt power and ground, and connect the compressor's negative terminal to ground
Test your new horn - if everything is done right, you'll hear both your factory horn and the air horn. #air horns