Why not cook marshmallows on my under dash fire?
You just keep doin that. You've asked for advice and been given it from some who has MADE A LIVING doing electrical work, yet, you keep askin the same thing over and over like you are hopin someone tells you the answer you wanna here. You have a FORTY FOUR year old wiring harness. Get a clue. You NEED to get that dash harness out so you can see it ALL and make the mods in the MAD article like Del advised you.
Or you can assume your car into a pile of ashes.