Several good write-ups here already.

http://www.xoutpost.com/articles/x5/...le-x5-nav.html

http://www.xoutpost.com/articles/x5/...vd-stereo.html

http://www.xoutpost.com/articles/x3/...avigation.html

http://www.xoutpost.com/articles/x3/...ut-bmw-x3.html

http://www.xoutpost.com/bmw-sav-foru...t-2005-x5.html

http://www.xoutpost.com/electronics/...xperience.html

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