Sorry, I like it too, but all electric wiring is a big mess done by some ham-fisted bloke in the 1970’s. The only way to correct it is to take everything apart. I already bought 10 years ago all wiring from Rhode Island Wiring and have been looking for the last missing parts and a genuine sample of Brich Grey.
Also the hood (in Murrican the convertible top) is falling apart when driving and it does not hold water.
It’s a conspiracy. My 120 came to me with all wires from the dash forward red or green.
I redid it with Rhode Island harnesses, a fair amount of work, but what a relief to have it right now.