My 2010 ML 350 with 8000 miles has an issue with the radio which may require an exorcism. While driving with the radio muted (speaker symbol with line engaged) and the nav display engaged the radio will suddenly begin playing (emitting music) thought I had not touched any buttons, + or - button, volume ****, etc; this happens either driving down the road or sitting at a light, the sound will start playing. My dealer could not find any problem.