My car's audio system does not recognize all my sd cards, why?

Question

I have tried making all the cards file system FAT32 (that is the format of the sd-card that's recognized) and still it does not work.The cards are all the same size so that's not the problem.Does anyone know why this happens?

Answer 1

Some players wont recognise files unless they are placed in an intitial folder on your SD Card.  Try to make a folder and put your songs in that an see how you go.