Hello, you guys I have a (for me) huge problem Now I bought a nice new radio with mp3 player and want to exchange it for the old beta. The information from the VW workshop said: This has to be installed by the workshop, because the radio is connected to the diagnostic grave in the car and then has to be changed with the new radio or on the diagnostic device. Otherwise the electronics in the car would break… Installation costs: 150,00 EUR Radio costs: 89,00 EUR *gr ml* Do you know if the statement of the workshop is correct. And if so, what exactly must be changed??? Thank you for your help already. ellypirelli