Hmmm. Re the message about audio problem being related to heat is very interesting. That is the same scenario I had. Would be home listening but go outside, clip it to my visor and get down the road and BAM ! Maybe David could take a know problem unit and put on car visor for a few minutes and see what happens.
I tried it sat it in the car for 10 minutes it got up to 118 degrees F but no dice. I then thought it may be the change ing temp from hot to cold so i cooled it down to room temp and again i was unable to replicate the issue. everyone who has had this issue please provide the exact circumstances of when this issue occurs so that i can try to track this down. Its really hard to fix it if I cant replicate it.