Getting a problem recently with music on my iPhone. It's a 4S, with iOS 7, which has been on it for about 6 months now, so nothing new about the software. Recently, I plug in the phone, the Ampera console shows 'Reading USB' - and thats it. Sticks on that forever. Powering off the car (for whatever period) makes no difference, neither does powering the phone off and on. Neither does deleting all the music from the phone, then re-syncing to put the music on again. Nothing special about the music as far as I'm aware, just two playlists and about 225 tracks. One of the playlists is a 'Smart Playlist' but I can't see how this could make any difference as the 'smart' bit only means anything to iTunes on the computer. It has always worked until a couple of weeks ago, when I changed in iTunes which playlists and tracks to sync across. When the display is stuck on 'Reading USB', even unplugging the USB cable doesn't make any difference, it sticks showing that message. I'm wondering what the car doesn't like!