91 d150 360 Magnum swap carb setup. So I have the entire harness from the cab sitting on my living room floor. It has a short, if I wiggled the fuse block my Park/dash lights come on............I think it's self induced. Long story short, I had no power to the heater/blower motor (black with red stripe) to the fuse block, so I spliced it into the constant hot wire that feeds the lights I used a scotch lock connector. So I'm gonna soldier them back to factory. The power to the heater/blower motor is supplied from the key switch. It has a new lock cylinder so maybe it will work now. Does anybody have a wiring diagram, I'm looking at simplifying this harness. As in getting rid of plug ins and wire that is of no use, like the abs that goes to the passenger side. Radio wiring, possibly the heater wiring. I might just put the door on defrost with a toggle switch so the motor runs on one speed- high. It's a project truck, I do drive it but it has no ac and never will. I need the lights, Speedo, wipers, that's it. And defrost for cold weather. Going back to basics. Need a diagram so I don't pull a wire I need lol. Another reason the dash is falling apart from age, the plastic trim that holds the radio and heater controls is basically gone, only the black trim holds the heater controls. The mount for the headlight switch is cracked. Eventually it will get a custom dash and I'll go with switches like Nascar, and a push button start, with all manual gauges with a speedo cable.