My car stereo refuses to play music from my phone when I connect via the USB. My 2 previous handsets, a Desire and Xperia Mini, worked fine. I have tested the (old) Desire and it still plays the files no problem. I have my connection mode set to disk drive, my car system comes up with the message 'no audio files detected'. I have connected my sd card to my vehicle using an adapter and it works no problem. I can connect my phone directly to my DAB radio USB port and it works no problem. Any ideas? I'm stumped. Apart from that, I'm very pleased with my new phone. Oh, and apart from its' apparent lack of support for live wallpapers.