On the '04's, you need to rip out the BMW assist module (which is incompatible with bluetooth) and then install the bluetooth module.

This site might be a useful reference: http://www.bmwx3bluetooth.com/BMW_X3...tructions.html

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David

Macan Turbo / 997.1TT (gone) / e83 (gone)/ e46 M3 / e90 335xi (gone)/ Sienna XLE Ltd
B7 A4 2.0T CVT (gone) / Pilot EXL-RES (gone)