I hope this isn't too ridicules a question for this group of Mini aficionado's but what is the oblong grill on the other side of the rear view mirror from the sliding window controls?

If it has something to do with an integrated telephone - how do I know if my car is wired for integrated blue tooth telephone?? Thanks, James S.

 

The bluetooth microphone is located in the rear view mirror housing. If you car has the multifunction steering wheel then I believe you have bluetooth.