Took delivery on my M3 and it was playing MP3's from the USB just fine. Have a 128GB card partitioned and setup correctly and both TeslaCam and the MP3s are sat happily on the same card.
Took car for a service visit for bodywork and trim, they put it in and out of service mode.
I couldn't figure out at first this spring why more and more Radio stations produced only "Loading Errors" in my Tesla 3. The reason: The stations are now using m3u streaming and Tesla's servers through which we all get Tune-in, are apparently not capable of handling the m3u streams (found this...
I have 2 SanDisk Ultra Fit USB 3.0 32GB flash drives.
One is set up for the Dash Cam - works fine.
Second for music - FAT32, folders for albums.
the music drive is recognized by my M3 - shows all albums, all songs.
when I select a song receive a Loading Error
I've rebooted the screen & shut...