I am on a long car trip. I had my iPod plugged in the USB and it's been running fine for ages now. All of the sudden it froze. I unplugged it and reset it and it will not work now. We stopped the car and reset it and tried again. Still nothing. The car still shows the iPod as being plugged in when it isn't. I attempted to put my father's USB thumb drive of music in the affected port and the other port and the other one not having an issue and nothing. It still shows the iPod and won't recognize the other one. This has happened before and we fixed but I can't remember how and can't find anything online now. Can anyone please help?