I went out and pulled the fuse block from the firewall, and 2 wires, next to each other, have had the jacket on them completely burned off. They are:
1. the brown wire returning to the fuse block from the alternator, and
2. the brown wire going to/from the accessory ignition terminal on the ignition
I will be ordering a new harness, but my question is, how could I have prevented this? I have the original groundstrap going from the cab to the transmission housing, and I have another 10 gauge wire going from the starter over to the actual frame rail. I had not had any issues with things set up this way. Should I add additional grounds? And if so, can you tell me from/to locations? Man this stinks.