If some of the files play, can't see it being the usb stick. Shove it in a laptop, and see wot format the files are. If some are mp3 and some flac it may not play the flac ones. That's were I would begin. Failing that just Bluetooth from phone
Yes thanks, that was the first thing I done. Wasent sure at first if it had come off my car. But google lens nearest picture produced a pic and said, nissan almeria. So think it must be off my vehicle. Thanks for the help. Paul