Alright, well, I went out this morning to get to work on it, the first thing I did was take note of the current condition with the truck idling and with the truck off.
I then took the cover off the voltage regulator and pressed the connections with my finger to attempt to free any stuck connections. That worked like a charm. Everything as of now is working properly. when I connect the dangling wire to the BAT terminal the battery charges.
My concern now is why the connection got stuck to begin with, and what will prevent it from happening again?
Can the connection get stuck again and fry the generator while I'm driving down the road, or is it most likely to happen when I start the truck in the morning?