I have a 2013 smart and have been running my iPod classic with it through the glove box usb without difficulty or incident for quite some time. I had to reset the warning light recently for the 2 year interval warning, and at that point the iPod is read by the radio as it always did, but it won't play. It identifies the song, etc., and I can choose a song, etc., but it doesn't play. Anybody have this sort of thing happen, and if so, what did you do? Help...