MP3 in USB

[Lone Ranger]

Recently purchased a 2016 Road Glide Ultra when I have my MP3 player on and plug it into the usb port on bike it stops playing, kind of like goes to sleep. MP3 works fine on my 2014 Limited, same set up as my Road Glide but for some reason I can't get the mp3 to work on Road Glide. Any suggestions?