Hello, I would like to upgrade my R8 EZ 03.2008 with RNS-E (2D Navi) to the RNS-E Plus (3D Navi). It is important that the new RNS-E plus an iPhone is supported, preferably via A2DP. As I have already read, the RNS-E plus brings iPod support from BJ2010 via AMI. Is there already new RNS-E versions that support A2DP without AMI? AD2P – Play music from the iPhone via bluetooh and manage or control it with the RNS-E. Are the RNS-E generations so exchangeable? or expandable to RNS-E plus? Does the harness have to be adapted or the control unit responsible for this need to be coded? In addition, the original rear-view camera should be retrofitted afterwards….