I own a 2006 Chevrolet Silverado 2500, with 6.6 Duramax. My review mirror seems to be on the fritz. "Automatic Dimming Rearview Mirror with OnStar, Compasss and Temperature Display. Problem - Compass and Temperature Display appears to be no longer working. Question - Is there an easy home fix for this? Pricing mirrors on internet and they seem to run around $200.00 dollars. Suggestions please.