Agreed. Mine was intermittent at first also. I would only see it in the car, and only occasionally. Eventually, it would not work in the house either. The car environment is more extreme with temperature and vibration, both of which would force this error more often. Do you notice the elapsed time counter pause when the song is glitching?

Plus, it is a very quick thing to check. The cable connection and header is a known common problem and a (relatively) easy fix.