Hello, in many contributions the integration of MP3 players into the radio network of the XC is discussed. I have now found something on the Internet, which has not been mentioned in any article (I think at least). I am an additional module to the MP3 player that uses the antenna connection to record the signal into the car radio. You can then listen to the music via a certain frequency on the radio. I have to order the part immediately (about 50,-€) and will post the result here immediately after delivery and installation. Information is also available at the following link:http://www.pearl.de/p/PE2733-MICROBOSS-MP3-Car-Rock-MP3-Umbaukit.html Greeting Alfred