Just speaking from past experience, i wouldn`t trust Year One wiring 100%. :angry9:
I bought a 70 Charger headlight harness ,from the firewall to the side markers. i followed the factory service manual to the letter & when i did my test run, turned my switch on in the dash, my headlights came on & my grille doors went closed in front of them. When i turned the switch off, the light went off & the grille doors opened?? :angryfire:
All my connections were designed to fit only one way. The car has a factory original dash harness, & new Year One headlight harness!! What could be wrong??? After changing the dash headlight switch once, changing the relay twice & checking all my dash wiring under a microscope, i went into the engine compartment & follwed the (100% Correct Year One) headlight harness.( one color coded wire @ a time) :coffee:
My headlight motor is a mint original electric with a two prong male/female molded end. Turns out the (100% Correct Year One ) headlight harness , molded motor end connector was backwards!!!!!!! I contacted Year One, they said there must be something else wrong in my system. :argue:
I got my old harness & lo & behold the color coding was backwards from my original, so i cut into the harness about 10 inches back & reversed the two wires & problem solved!! :headbang:
* My point being ,as i said, i wouldn`t trust anything 100% ,other then good clean untouched, factory original. I know these electrical problems can be a big headache ,so i was very aware the first time around on mine, so as not to over look anything and make a dumb mistake.
If you don`t find that your system has a draw, I think you may have to (& it will be no easy task) get an original 69 manual and follow each color coded wire ,from beginning to end ( maybe even label them) , so that you are 100 % sure.