ok, im finally getting around to putting in my new autometer C2 style gauges. now i know how to ground it but im not sure about the red and white wires. the red goes to a 12v ignition switch and the white goes to a 12v dash lighting. now my question is what is the color of the wires im looking for. i already have my instrument cluster out and unplugged, i just dont now which one of the 25 wires is the one i need.