Ultra fit 32gig usb doesnt play in car

I have exactly the same problem and it doesnt just skip through music on my car radio, it skips through music no matter what I plug the stick into - laptop, xbox, macbook, desktop, bluray player.  It skips through music. So by that reckoning its not my devices its a problem with the Pen drive.  I got this primarily to play music in my car.  It cant do that.  I’d like to know why

Many thanks.