Here's a post from someone who has done it.

http://www.xoutpost.com/articles/x5/s...em-dsp-x5.html

__________________
SOLD
2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input