Did you pair your phone (i.e. have it link up with the car and enter the bluetooth pin nimber for access)? What year is your X? follow the instructions that came with your kit. It should tell you how to pair your phone with the new bluetooth module.

__________________
'06 X5 4.8is, TiAg/black, cold weather pkg., comfort seats
'07 750Li, TiAg/black, sport pkg.
'05 Ford F350 silver met./slate gray, Lariat, 6.0 PSD, CC, DRW, FX4