I have a new 2013 300, and can't get the Uconnect system to handle MP3 songs properly. SD card, CD or USB flash drive - any and all cause the system to recognize all song titles, only play one in six, and report read errors. Chrysler tech support admits that they don't have any technical information on the Uconnect system, and so they can't offer any advice. The same songs in WMA format work excellently. But WMA files are MUCH larger than MP3 files. Does anyone else have this issue?