Ultra fit 32gig usb doesnt play in car

[rogernp20]

i was waiting for them to blame the car etc , so why is it i have about 4 or 5 different sticks most being sandisk and they all work , as i said amazon has others on it with same problem , sort it out sandisk , ford is a popular make so its not to hard to take one out to the staff car park and try . Every time i see these on hotukdeals or amazon etc im gonna post avoid if for car use