This will allow you to switch between your stock horn and air horn.
Alter factory wiring at your own risk!
SUPPLIES:
SPDT toggle switch - preferably “no center off” so one of your horns will always be available.
Wire - Should be at least as heavy as the factor horn wire.
Butt connectors, spade connectors, etc. or solder & heatshrink.
Wire loom as desired for protection and appearance.
Rubber grommet anywhere wire passes through firewall, floorpan, sheetmetal.
Solenoid valve.
