FOUND THE PROBLEM, AFTER DAYS OF RUNNING WIRES AND CHECKING GROUNDS, SWITCHES, POWER, PULLING MY HAIR OUT, ETC.....
I FOUND A BROKEN WIRE INSIDE THE TAILIGHT SOCKET, WHERE THE WIRE IS CRIMPED TO THE SMALL BRASS CONNECTOR WHICH TOUCHES THE BULB. I CHECK THAT FREAKIN WIRE TEN TIMES FOR VOLTAGE, BUT NEVER ACTUALLY TOOK THE RUBBER BOOT OF THE SOCKET. I GUESS I FIGURED IF IT HAD POWER TO THE BACK OF THE BOOT, IT HAD TO GO ANOTHER 1/2 INCH ALL THE WAY TO THE BULB. CHEAP BASTARDS! WHAT A HEADACHE.
OH WELL, THE BEER FLOWED AFTER THAT FIND. NOW MY HEAD HURTS FOR ANOTHER REASON.
THANKS TO ALL FOR YOUR EXPERTISE
HAPPY MOTORING!!!!
CLAY