Well,
Tracing back the wires, I found that the hot side of the wire (round style terminal) at the switch was 'sorta' loose. Not especially, but enough to probably be the cause of my intermittent problem. Crimped down a little bit and they seem to be back to normal. Tracked back to the tail lights with no other issues found.
Good call, Bill, as always.
Thanks for all the suggestions guys.
Jim
Last edited by Fourbrads; 10/27/2013 5:11 PM. Reason: Changed title