My truck came factory with 1 tank. The PO installed a 2nd tank with a switch. Today I go pissed and removed the switch, cut the wires out and removed everything. WHAT A DUMB MISTAKE. My truck stays on etc. But my FUEL GUAGE is at the 3 o'clock position. My question is How is the fuel guage routed. The wire from the tank connects to what? My guage is teh factory type that connects via 3 bolts into the cluster pannel. I take it one is for ground, the other power, and the other goes to Gas Tank. Am I correct?