Hi guys, I'm looking for some advice. My drivers side HID light stopped working I replaced the bulb which was £46 from fast parts and it still isn't working. is it common for the the little black box connected to have any faults? It is a pain to change mind best way I found was taking the whole light housing out and replacing it that way and the bulb pops in and out is this right? When trying I fitted the new bulb there's a little black ring that clips around the whole light fitting this doen't want to go back into the light assembly.. any advice would be greatly appreciated, thanks in advance