[Rev]

I can't see why you can't just use a Ford manual wiring diagram and just splice in new wire for the bad parts. Soldering in the connections and shrink wrap should make it good as new shouldn't it?

I did that in my car in probably dozens of added or repaired circuits and have not had any problems to speak of. If you need a circuit for fog lights, why not just make a new one using a relay, inline fuse, and a OEM dash switch to actuate the whole circuit? I can't really see where your problem lies if you're not after concourse correct appearance.

Still trying to figure out the function of the bolt thing in the picture that you posted, LOL.

Rev