I just swapped ny 2009 RNS510 with the latest version. The unit is powered on, but there is no interface with the car sound system, MFD, or the steering wheels control functions.
Is it possible it needs to be programmed using VAG COM?
I am without a radio, I sold my old one thinking the process is a simple as the previous one, where it was "plug and play"
Also, how to interface the climatronics with the RNS510?