The factory schematic seems to raise several more questions: It looks like the alt to amm wire goes to the top amm post (+) and then leaves from the same post (+) to the lights and ignition while another wire goes from the amm (-) post to the battery. On some 12v conversion schems there is also a blue wire from Alt to ignition and ignition to coil. The slightly different terminology also is confusing, for example as I look at my ignition switch from behind there is a post at the top, a post at the bottom and a post on the left. I have the alt feed going to the left post and the blue wires (in from alt and out to coil) on the bottom post.??? And the wire from ignition to gas gauge is on the ignition top post. Also some conversions stress need for a ballast regulator between ignition and coil. Is this necessary since the truck ran ok without it - just needed a lot of cranking to turn over.
I hate being this stupid about this stuff and sure appreciate the expertise and patience of everybody on this forum.
