Not sure if it's related, but my CD player would get a "CD Error" message on any CD I tried to play. The dealer replaced the CD Player/Nav unit and all was good for about 7,500 miles. It went out again, fortunately the dealer replaced the unit again even though my 3/36 warranty is up.
I think I'm going to pull out the HAC version and start using a factory/ unburned copy again and only use the HAC version when the wife is in the car. Next time my radio goes out it's on me.
