Originally Posted by claykin
iDrive controller, click RADIO button. Then Navigate to Satellite Radio. Click iDrive controller to right and select Manage Subscription. Here you'll see your ESN and the 888# to dial to activate.
If all else fails, call 866-484-7474 and tell them you cannot figure it out and it came from the factory in your BMW. They'll guide you.
Just make sure they give you your full 1 year from the date you call to activate if you've had the car for swhile and havent activated it yet.