Upgrade Audi A4 audio for your car ,this product is new but with good quality,it supports rearview camera. Automatically switch to rear camera and display rear image in the screen when reverse the car.link:http://www.seicane.com/audi-a4-2008-2012-head-unit-dvd-player-gps-navigation-system-with-bluetooth-tv-ipod-si-9105 .
