The wires that plug into the back of the 9007 stock headlamps - there are three wires per headlamp. The two outside wires are grounds, the center wire is 12V, it will come on with ignition if you have the DRLs intact, or else it will come on when you turn on the lights if you removed the DRL module. On the driver's side it's a Red/LightBlue wire, on the passenger side it's LightBlue/White. hth.