Today we had beautiful weather in chicago, in the high 60's. the only thing is that the temperature reading in the climate control console stays at -1 degrees. it stays like that too. i'm thinking it could be the ambient temperature sensor behind the grill next to the radiator, but i want to make sure it is that sensor before i do anything. i was wondering if anyone actually knew how to get to it and to replace it. i can see it, but just can't get to it, the grill and what not is in the way. any help would be greatly appreciated, thanks!