Individual wiring harness for upgrading to the MMI High 2G infotainment system for Audi A4 8K Components perfectly tailored to your car Connections for: DVD navigation Radio box CD changer (according to chassis number) Scope of delivery: Cable set Notes: Please state the chassis number of your vehicle If the MMI control panel does not have a "NAV" and "TEL" button, you must replace it An original CD changer is also required (if not factory-fitted) Sometimes brackets for controllers or a trunk lid with an opening lid are required On request, we can carry out the installation in our in-house service center