This install is based on the 2006 X3 with "M" package, which is slightly different than the 2004-2005 X3s due to the way the bumper and headlights are mounted. Apparently you can remove the headlights on the 2004-2005 X3s without removing the bumper. I imagine you could wrestle the headlight out of the 2006, but there is a headlight bracket blocking the headlight from removal - this part was added in 2006 to help hold the "M" bumper in place since it is structurally different than the standard 2-piece bumpers.

Here are instructions for removing the bumper, although not completely accurate for the 2006 X3:
http://tis.spaghetticoder.org/s/view.pl?1/09/22/51

Here are instructions for removing the headlight:
http://tis.spaghetticoder.org/s/view.pl?1/09/34/13

For the 2006 X3, when removing the headlight, you should remove the bracket 1st (part # 5):
http://www.realoem.com/bmw/showparts...39&hg=51&fg=15

Here are the Orion V2 LED angel eye wiring/install instructions that were "provided" by Umnitza in the box. They are useful for understanding the wiring:
http://www.fastm.com/m3/angeleyes_orionv2.html

Before I removed the bumper or headlights, I tested the angel eyes per the instructions that came in the box (see pic). I then removed the bumper and headlights.

Attached Thumbnails

   

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BMWs currently in the garage: VF570 E46 M3, E46 XI Touring, E83 X3 "M" retrofit