Pulling power from the pigtail harness on top of tank, to supply hot to the external Holley fuel pump. I don't have 12v anywhere. I used to have power before the winter, but now nothing. I can see where the harness runs above the tank and disappears. Any suggestions where this harness is powered from? I have Holley tied to a switch on the dash, which was installed when I got the fox. Would it just be easier to run a new wire from the switch, instead of trying to locate where I'm losing power at? It's an 85 model notch, so you can imagine what condition most of the wiring under the dash looks like. Please help! Thanks fellas.