Digital radio integrated into the headunit
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
In the current headunits (Radio/CIC/CHAMP), the digital radio function is being integrated into the headunit little by little. In this case, a separate Satellite Digital Audio Radio Service control unit is no longer installed in the vehicle.