How doI sync my Oker digital mp3 player and IPHONE. TRYING TO STREAM MY MUSIC IN MY CAR. Very disappointed that there were not any instructions!!!! 
My mp3 switched off or crashed what do I do?
posted in MP3/MP4 players
Maybe it’s the player problem, you can change another player to play your mp3.
If the problem is still there, I think you need download the mp3 again.