I am trying to find the horn wire under my dash, I would like to turn factory horn off when turning train horns on, does anyone know the color of wire for the factory horn? and maybe draw a diagram how to do this. thanks.
simple way would be just add a second horn button i used a momentary toggle switch under my steering wheel, as for the horn wire u can always tap into the wire at the horn and run it back to the cab if you are unsure where the wire is
i took a power from the ignition…to a switch. to my valve.
just basically find the stock horn and the wires that go to the horn…there u go…one is hot and the other is ground…