[DESI4life10]

Originally Posted by rayguy24

So looking at Realoem http://www.realoem.com/bmw/showparts...91&hg=61&fg=15

Which pin connector is needed for adding the ground wire?

You can do the wiring internally.

Get a butt connector. Tap the black wire for the ballast with the brown wire coming from the halogen high beam. You won't have to do any external wire mods by doing it this way. These connectors can be found at your local auto parts shop.