OK... I got it fixed, don't know what I did, but it works again.
After checking everything else, I took the fender off and started looking for frayed wiring... Everything looked fine.
Just for the heck of it, I un-taped the wiring where the trailer hitch was wired in. It is saudered. Everything looked fine. I re-taped it.
Examined all of the wiring again... Looks fine.
I plugged in all of the connections... The lights came on...
So, I guess even though everything looked fine w/ the trailer hitch wiring, something must have been rubbing... ?
But it's all working good now.
Thanks for the help guys.