Today I hit the button to unlock the VX and all it did was beep for several seconds at me. It was a long, drawn-out, high pitch whine really. I think it is the same noise you get for leaving the lights on. So I get in and as I'm driving along the domelight comes on by itself. I turn it off. It comes on again in a minute or two. I turn it off. It comes on again... anybody have any ideas on this one?