I installed the dynavin V5 on my 06 320i and bought a wireless reverse camera to avoid me running wires through the car. The screen image flickers sometimes, but not enough to worry, as the image is not really off.
Im prepared to accept it as it is an aftermarket made up from several components from different manufacturers.
I made some notes on the way I installed it at this link.
http://www.e90post.com/forums/showpo...&postcount=350