Upgrade module for the Speech Diaglog system (voice control) in the Audi A4 8K - MMI 2G The following components can be controlled by voice: Radio CD Telephone (address book) Navigation Very useful for dialing numbers and for navigation If there is no factory-fitted telephone option, an original microphone must be installed in addition Scope of delivery: SDS module Notes: Not suitable for MMI 3G This system is only for vehicles with MMI-High (7" colour display) and a multifunction steering wheel Must be activated by your Audi dealer