Definately a ground bus issue.
I pulled up the carpet and it was wet and I've got tons of surface rust bubbles to take care of. The door and windshield seals are shot and have allowed lots of water in.
Corrosion of the buses were so bad that one was no longer attached to the wires. Another had two wires that corroded off.
I have pictures that I'll post up soon enough.
The busses are so far gone that I cant reuse them. Can I just strip some insulation off the wires for each bad bus and solder them together?
Edit: Picture time!!
Heres the bus that wasn't attached at all
And that corrosion just flaked off when I hit it with a screwdriver...