XM™ Satellite Radio Service
XM Satellite Radio Service gives digital radio reception from coast to coast in the 48 contiguous United States, and in Canada. Just as with FM, tall buildings or hills can interfere with satellite radio signals, causing the sound to fade in and out. In addition, traveling or standing under heavy foliage, bridges, garages, or tunnels may cause loss of the XM signal for a period of time.
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For Better and Worse
Without a doubt, the ATS feels a lot like the recently redesigned 3 Series
sedan, with comparable attributes inside as well. The backseat has almost a
half-inch more legroom than the 3 Series, but ...
If the System Needs Service
If the navigation system needs service and the steps listed here have been followed
but there are still problems, see your dealer for assistance. ...
Rear Display
Press the Rear Display(s) screen button to allow the choice of sources for rear
display between front disc, rear aux, or usb, if connected. ...