So I bought my LS in feb. didn't know it had auto dimming mirrors on it as its never auto dimmed for me. Today I was installing an amp for my mids and highs and upon taking the car for a test drive to listen to new system I notice my rear view mirror mostly dimmed.. This is the first time it's ever dimmed. During the drive I can almost watch the shape change. A few hours later. Only a few small spots on the bottom were still dimmed. What determines when the mirror dims? What could cause this odd dimming? Am I looking at a replacement? Lastly, if the rear view mirror dims, shouldn't the drivers side mirror dim as well? It was not dimmed during this experience. And like the rear view mirror before today, has never dimmed before. Also during this instal I found 2 unconnected things under the center console.. One looks to be some sort of phone line jack? Actually it looks wider than the standard phone jack, looks more like an ethernet port. The other I haven't any idea what it would be for. Anyone? Thank you for your help!!