I wired mine up to an aux switch. ive had them for awile they are cool but one of the bulbs burnt out and there is no way to replace them. Got pulled over for speeding and cop didnt say anyting about them. THEY ARE COOL AND PIMP AS HELL BUT BEWARE OF BURNT OUT BULBS DO LOOK GAY. and the silver matches the grill and looks just as good durring the say but doesnt spray as well