Hambone- tomorrow I intend to test the second wire to the gauge.. I believe it is red. As I stated earlier, the other one is brown and comes out of the back of the fuse panel. Somewhere in reading other posts I saw a reference to an insulator under the fuse panel. The way my brown wire - and the spade connector - on the back of the panel looks - I can see where it might contact the firewall now that I have secured the fuse panel with a second (and lower) screw. Wiring is not my forte.. but I’m trying to figure this all out. Another interesting thing, when my key is off, the gauge reads half full which is about to he amount of fuel in the tank. When I turn the switch on, the gauge goes to full. Tim-o