Which of these wires is for the horn

[LukeZ]

I have an 86 El Camino with a 305 and I need to find out which one of these wires going into the steering column is for the horn. The little wire that actually connects to the steering wheel with the spring is yellow (not the same yellow as the one in the group going into the steering column tho). I don't want to have to go through and individually ground each one to see which one makes the car beep. Anyone have any idea? I don't have a shop manual for this car, sorry.

Left to right, it's white, gray, green, purple, pink, green/brown, green, black, light blue, blue, brown, purple, yellow, green, white.

 

[fleming442]

Horn is black. Hit it with a grounded test light, and it should honk.

 

[LukeZ]

Horn is black. Hit it with a grounded test light, and it should honk.

You were right, thanks my man

 

[fleming442]

No prob. Most of the time, I'm not making stuff up.