I'm stumped. I'm working on my 87 K5, and I've reached a point that I don't know how to fix. I've been replacing the wiring harness on it. Wiring has never been my strong points, especially since I'm partially color-blind, and I get frustrated really easily when it comes to electronics. I can't figure out what needs to go where, and I can't find a service manual anywhere. I need some help. Willing to pay!