The optionally available multimedia COMAND APS control and display system (standard in CLS 63 AMG) combines several functions in a single device, offering you the greatest ease of operation. The new generation of the COMAND APS lets you more easily control the radio, DVD player, navigation system and phone. It also lets you operate the optional Harman Kardon® Logic 7® surround sound system, the CD changer and the TV tuner. The navigation system also works with the Global Positioning System (GPS).