I’m at a loss with this…. I have a 2016 Skoda Fabia Monte Carlo. 
I cannot get it to play songs on a memory stick. Tried so many different formats and it won’t have it.

Only plays part of the song and then skips to the next track.

To be honest I can’t get it to play a song from start to finish.

Seriously thinking of buying an aftermarket head unit.

Any ideas? 

When you say formats are you talking about the music files or the memory stick?

 

Check for supported file formats, memory stick format and capacity in the owner's manual.

I use usb-3 memory sticks 32k or 64k formatted fat-3 and these run fine.

I download music videos from you-tube using this app. https://ytmp3free.cc/en/