... This interface is suitable for BMW 5 series(523,530 etc), 3 series, New X5,X6,with DIP switch ... signal converter inside, the interface can also control DVD/DVBT operations based on the iDrve knob operation.It ... Then you can hear the sound of the extra DVD, TV, etc video and audio unit for connecting ... resolves.Thanks for your time Car DVD ,TV, GPS interface for 2005~2009 1 series,5 series,3 series,x5,x6