I've done some research on the different Combox retrofits, and have been told that with the media version, you have to deactivate it before your car goes in for service due to an issue with programming. I'd get the telematics version just to not have to deal with that hassle.
BMW Welt Delivery 4/14/16:
European Delivery - 2016 340i EBII/Saddle - ZMP | ZCW | ZDA | ZLP | ZTP | M Adaptive | Rear Shades
2011 335D Space Grey/Black - ZSP | ZPP | ZCW | 6FL | Sat Radio | Nav | $600 Base Audio Upgrade