I have a 03 x5. I assume the bt is fully installed becouse it has the bt activation button on the steering wheel. I fallowed the directions in my owners manual but it wont work. First question. How to i double check to make sure that bt is really installed. Second if it is were should my path of trouble shooting go? Thank you for your help.

__________________
2003 x5 3.0 . 114,000 mile. Im new to the bmw word so excuse any dumb questions. Lol.