Thanks man. really appreciate the info. It'll probably be Saturday before I tear into this. I'll post up what I find.The wire colors are Tan (unlock) and Grey (lock). Look for the wires in the 9 pin connectors in both hinge areas. They should be the only wires in the 9 pin connectors with those colors. Good luck.
I'm not sure just how the wires are routed across the front of the truck. Probably somewhere behind the instrument panel. I'll dig back in the Service Manual and try to find some more info.