Hi, I have a my 2012 7p 150 TDI -- with OEM nav in the head unit - dealer can't assist with a Reverse camera option or part number, any ideas? Would like one, as my previous car had a Reverse camera, and side mirror which dipped when reverse was engaged (this does not dip - when mirror switch engaged to Left side)... Also any one why one key will close mirrors on car locking, whilst other key won't? VW dealer again could not solve issue. Thank you for your help.