It is plug 'n play, and the stock wiring can handle it, although I always recommend relays for all lightsjust got my hid kit today , its plug and play, hooked it up but didnt work , the fuses on the kit look good.. is the stock sc wiring to weak ?? or do i have to start the car to make them work ?
Try un-plugging and re-plugging the connections, and/or check for power going into the ballasts'.i put the old stuff back in place .. so i didnt try starting the car.. any ideas ?