See also:

Supported Media (Disc Types)
The MP3/WMA file recording media supported by the radio are CDDA, CD-R, CD-RW, MP3,WMA, DVD Video, DVD-R, DVD-RW, DVD+R, DVD+RW, and CDDA+MP3. ...

Bluetooth Streaming Audio (BTSA)
Music can be streamed from your cellular phone to the Uconnect™ phone system. Controlling BTSA Using Radio Buttons To get into the BTSA mode, press either “AUX” button on the radio or pres ...

Playback of MP3 Files
When a medium containing MP3 data is loaded, the radio checks all files on the medium. If the medium contains a lot of folders or files, the radio will take more time to start playing the MP3 file ...