There's may ways the unit can be locked out... Hard to say. The only way to get the code to unlock the deck is through BMW.
Unless the code is in your Owners packet in your glove box. If the radio is the same unit that came with the car... you should have
a radio guide and within should have the Radio information, Code & Radio S/N.
Last edited by Mudnyrey; 11-13-2012 at 06:58 PM.