Haven't put a hitch on our X3 yet. Keep thinking about it, but have managed to put it off.

There is an article on a 2006 with an OEM hitch install, if you have't seen it.

http://www.x3world.com/articles/x3/b...h-2006-x3.html

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue