I recorded 11 songs on a thumbdrive, or memory stick. I dragged the songs from Windows Media Player to the thumbdrive.
The car has a place to insert the thumbdrive, and has Uconnect 8.4. When I inserted the thumbdrive, the music started playing through the car speakers.
Each of the songs were about 1.5MB. Some of the other songs on the Windows Media Player are about 10MB. Audio File Formats