I'm getting 12.5 volts going into my key switch white wire with the switch off and with the switch on i'm getting 10 volts on the gray wire going to the volt meter.I'm trying to figure out how to get my volt meter to read the correct voltage. I have a positive and negative bus bar mounted under the console and hooking the volt gauge to it i'm getting 12.5 volts. Do I have a wire hooked up wrong on the ignition ? Thanks for any help