Horn button/steering wheel problems

[elwood]

I just bought this truck,, the horn doesn't work. It's not the fuse, wiring or horns, they all check out. I go to take the horn pad off and there is a metal ring held down by three torx head screws. Aren't there supposed to be wires and contacts behind the pad? How do I get the steering wheel off? Where do I stick the puller bolts?

I'm thinking about going with a grant wheel to simplify this crap.

Also, can I use a newer GM truck steering wheel (like up to '94?)