Well, I put everything back together, including a dedicated chassis ground and still have the same problems. I did find a couple bare wires on the harness leading to the ignition switch, however. Both wires read 12.08V. If they are both hot, can they still cause some kind of short if they touch? The jeep used to have an alarm system on it.
Can anyone identify this black electrical connector?
It's located along the steering column, and I don't have a clue where it is supposed to connect to.
Hoping to figure this thing out because I sunk $500 in parts for the heater core, evaporator, water pump, radiator, etc.