Unwrap the whole thing and follow through wire by wire replace any bad wires or splices. Redo any bad connectors in the plugs. Get some Packard 56 connectors (I got mine off E-bay) and just make it like new again. Learn how to solder and splice on You Tube. Most important thing you can do is remove it all. Don't try and do it in the car. I made a scroll out of all the wiring drawings in the FSM to make it easier to follow.
Cley
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