reusing steering wheel buttons

[Bluedevilman]

I have added train horns and onboard air with a air chuck for air tools with my airbag setup. I am currently using the aux1 switch in my upfitter switches to blow the horn. Does anyone know if there is a way I could use a unused button on my steering wheel as a second horn button? If this is in the wrong area sorry about that.

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[44Dan44]

Following for other answers you might get....but, having it go off with the regular truck horn not an option?

 

[Bluedevilman]

That's a good idea, but as loud as the train horns are I like to keep the regular horn around so I don't always scare the crap outta people lol.

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[DrTron]

Or put a small timer relay in between that actuates the normal horn for the first second or so and after that switches over to the loud stuff.