Time to remove and repair, possibly replace, under dash harness

If you have the time and don't mind putting the car down and you have the skills, I say either build a new harness yourself, or repair yours. I do also agree that those wires weren't really made to last 50 plus years, especially with the plastic compounds of yesteryear making up the insulation. It gets hard and brittle, unlike modern compounds that last much, much longer. So there's that to consider, too. I think what I might do if it comes down to a harness replacement in Vixen is look at a new universal harness from somewhere like Speedway Motors. Sometimes they run really good sales. I actually have a universal 21 circuit harness I got on sale for my rat rod truck for 89 bucks. It was normally 299. I was in such disbelief, that I was looking in my email everyday for the cancellation on my order, but amazingly, it was here in a few days. Very complete with switches and all. GM colors of course, but who gives a ****? I sure don't.