Hi, I have a RNS-E headunit retrofitted to my audi a4 b7. It also has a BT module retrofitted and reverse camera and i would also like to activate the SDS function on it. Could someone please advise what software version i need to enable all the above functions. I might add that it is a european unit and at present everything has been coded in but the TV function does not appear in the CD/TV menu. I might also add the unit is pre 2010. At present the unit is SW:0650.