I want to connect the two step for my turbo car to the ground wire from the horn(given that I no longer have a horn it seems like a good thing to use as a momentary switch to activate it for a M6) Given that my area of expertise is not wiring does anyone know which wire is the ground on the horn wiring? thanks for the help guys.

 

there are only so many wires in the column to try

 

I was just planning on running int from the connector that use to connect to the horn itself so that narrows it down. There are probably only two that run to that connector I think I just need to know which one is ground. Yeah definitely going through steering column is too much work Ill just run wiring into the front of the car to make it easy.