My 2006 T&C instruments would sometimes go crazy, then turn off, while the radio seemed to continue making a clicking sound like a relay switching on and off. Wednesday, it wouldn't straighten out when I disconnected the battery, like it had before. I checked the fuse box with the ignition off, and the accessory relay was clicking off and on. When I remove the relay, the dash board is fine, but the radio and power windows don't work. When I put it back, the problem comes back. At least we can drive it with the relay out. (Actually, it drove fine even when the instruments weren't working, but it's hard to select the right gear and obey the speed limit.) A new relay did not solve the problem. My guess, with some help from a friend who is an expert Chrysler mechanic, is that the power cycling is confusing a computer on the accessory circuit, maybe in the radio, and it is transmitting garbage that prevents the instrument panel from knowing what to display. Tomorrow I plan to check the driver's window switches,...