Yeah, I remember that being a true pain in the butt on my E39. I wound up taking the stock halogen bulb holder and used a dremel tool to cut off the wiring plug and bore out the middle. It didn't look nice, but it did the job 100%. That adapter looks like a clean version of what I did, and trust me, like a charm it works. The only problem I had was that after repeated taking-out-and-putting-in of the xenon bulbs, the little plastic tabs around the outside that latch the holder in broke. I was thinking about ways to address this problem that would be more permanent than my stopgap measures when I totalled the car, making the question moot. So I'll endorse his idea, with the proviso that you don't want to disturb the bulbs very often once you've got them in. I was forced to due to mixups with Umnitza; don't make my mistake.
Last edited by Teh Prof; 02-23-2006 at 08:27 PM.