Specifically for vehicles equipped with or without factory BOSE sound systemRetains vehicle's factory Steering Wheel Controls (if equipped) when installed with a SWC compatible aftermarket radio (Alpine, Clarion, JVC, Kenwood, LG, Panasonic, Pioneer, Philips, Sony, Jensen, Android and off-brand aftermarket radios)Provides 12-volt accessory powerAllows for the installation of aftermarket radio using existing factory wiring and connectorsNo cutting of factory wiring necessary
A3 2008-2013 & A4 2006 equipped with Symphony Plus or NAV factory radio onlyA4/S4 2005 equipped with NAV factory radio only