Does anyone know what wire needs to go to the signal wire side of the starter. I have headlights and a horn but no crank. I've checked the wires with a meter and don't seem to have power at the switch. It's a new switch and a new neutral safety switch. No power to hvac, radio, or gauges. I have 2 red wires to inline fuse to battery and 1 purple-ish colored wire to s side of starter. What am I missing?