When i took out stock gauges to install after market for the setup Drew Maurer came up with. I went with the volt meter my question is when I hook up batt. I have no power. Old wires for amp guage one wire is hot other is dead. I have no lights no starter nothing. Do these wires have to be hooked together to complete a circut as if they were hooked to the gauge. I don't want to fry my wiring. Somebody has to know the answer.