This may or may not address your issue, but a month or so back I had electrical work done by a reputable local shop - professionals - who solved the presenting problem, which was a dying battery and a failure to consistently charge, even though they had replaced the alternator on the previous visit.
What they did was put on new crimped battery terminals, because the main battery + lead was getting hot to the touch. They stopped there. Problem solved.
Not.
They apparently weren't interested in pursuing the matter further. So I took matters into my own hands, and discovered that the ring terminal on the battery to body ground cable was brittle and about to break. Which it did when I took it off to inspect it. Also, that ground bolt goes through a single layer of sheetmetal, and the hole was stripped out from apparent overtightening. It's a blind hole, meaning you can't get to the back of it to put on a nut for a proper bolt. So I fixed it by installing a rivet nut in the hole and a ¼ - 20 bolt, plus a crimped copper ring terminal on 8 AWG cable. I also discovered that the main battery ground cable to the block was chewed extensively by a packrat. It was quite obvious, and I'm wondering how the professionals missed it. I replaced that too. I also bought a new battery. And a new ignition switch, on the recommendation of a member here.
After 100+ miles of road testing, I'm cautiously optimistic that my electrical problems have been resolved. Time will tell.
Good luck with your Cheyenne!
