I keep a 64GB USB flash drive installed in one of the slots which has about 600 MP3 albums on it. About half the time after I've shut off the car and get back in and going again the audio will resume exactly where it left off. But the other half of the time when I start the car back up the audio will revert back to the first track on the USB drive. So it's either doing what it supposed do, and the other time it launches the exact same track. Anyone got some suggestions for fixing this glitch or what might be causing it?