I just purchased a set of the pro tuning HID angel eye halo projector headlights for my 2004 325Ci. they say that they are plug and play but I noticed there are red and black wires coming out of the bottom of the headlight housing and I'm not sure what these are for.
Can anyone tell me what these are for and what they hook up too. The headlights did not have any wiring diagrams or hook up instructions with them.
Thanks