Then I found and ordered this adapter here. My conclusion: Super part! Connecting, activate Bluetooth on the phone, select Adapter as a counterpart, finished. No long or configure, it runs for 15 seconds. You can immediately listen to music over the car radio. The sound is very good, even better than the radio or CD.
I wish technology would always be so simple. Calling all developers: you Take an example!
From me 5 star and a strong buy recommendation.