wires

I'm in the process of trying to figure out why my horn doesn't work. Looking in the engine bay, there are two nonstock horns with wiring from an owner before me. The horn worked prior to the car being dropped off to be painted. When the horn button is pressed down, it does not beep. Also, the...

I have an 83 El Camino cranks over perfect but will not start have no power to pink or purple wire in ignition switch neither no power to ign or gauge fuses but fuses or not blown need help !!! Don’t have power to pink wire that connects to coil in distributor neither

I was looking at the starter and noticed that there was three wires when I’m used to two. There’s the main battery cable then there’s a thin black one and a thin tan one. Which one is which?