I know ,I know, back at the beginning of the year one of you genius guys posted a complete thread on how to rebuild a head light switch. I swear I made a copy of it. I was under a lot of prescription drugs so I don't know where the copy is. I followed directions and did it from a prone position and it works fine. I just need to know what wires goes where. First day under the old bugger and have traced the lines on the original wiring harness but, the colors at the rear are white, green, orange and light blue. Not what the original GM wiring diagram shows. I'm willing to admit that the harness could have been changed. The original owner said no. I guess I should just run one wire at a time and do it that way. The front lights all work. Stupid in Florida. Doc