Thanks Bill. I checked continuity on the gas gauge (w/ v reducer) and got 6v. l replaced sender ground wire and wire to gauge. I think my gas gauge is 12v but to be safe put the v reducer on it. If it is could that keep it from operating? Is there a test to determine if the gauge can support 12v?
Also, I have an add on turn signal switch that works fine but I'd like to create a mini - wiring harness to give me turn blinker lights on the gauge cluster. Can I splice into the wires to the front or rear L and R blinkers to power it? I tried connecting to the posts on the blinker unit but that didn't seem to work.