Over on XDA some folks have suspected the G Sensor might be partly the cause. I didn't think about it before, but I have noticed skips at times when hitting bumps in the road when driving. Just like a CD skips. I thought the skips when at bumps might be coincidental, I was not thinking about the G sensor at all, but the G sensor theory might be valid. I don't have Gyrator like the OP in that XDA thread.