Ultra fit 32gig usb doesnt play in car

yes left the stick as it was and transferred the music over to it and no joy , the problem is the music plays at a weird high speed , stopping and starting , tried various different quality mp3’s and bit rates and still no joy, so did a bit of googling and found i wasn’t the only 1 so thought id do a bit of trial and error and different formats and used verbatim fat32 format program and hp format program , still no joy , tried different cluster sizes and still no joy , sat in the car with laptop trying different ways etc as really wanted to see if i could find a solution but accepted defeat in the end . ive ordered a aluminum strap for it now and will just use it on my keyring , there cheap as chips so no big deal just a shame. i think the size will appeal to alot of people who want to fit and leave them plugged into there car stereo’s