I'm looking at getting an aftermarket thermometer for the ride. It has inside and outside temp. On the outside temp, it has a wire with a sensor on the end of it (not sure length of wire right now). Where would be the best place outside the car to put this sensor so the wind will not mess with the readings? It needs to be as close to the interior as possible for the wire.

I would put it in the stock location where it is on the SLE/SSE/i with the ECC. Right in front of the radiator on the bottom of the support.

X2, SE'* have it too thank you very much

OK, thanks.

Actually... I wouldn't put it in the stock location.

Personally I feel that GM made a mistake putting it there. You read some of the radiator temp.

Myself and all others I've heard of have noticed that the ECC reads about 3 degrees warmer and fluctuates when you stop.

That is odd, mine has NEVER fluxuated, or read any higher than a car sitting next to me.

Look at yours with the car warmed up vs the actual known outdoor temp. I think you'll find a couple of degrees. That is what I mean by fluctuating. You would probably see it once you are sitting still for a couple of minutes and the heat radiates to the sensor.

What about if I ran it out the front door and inside the quarter panel?

here is the key...is the sensor calibrated for when the car is moving??...you want the sensor in a place where it will get the ambient temp but wont get influenced by radiant heat....

you always could get a STOCK rearview mirror with the temp, and then not have to worry about aftermarket stuff.......

Just to keep y'all up to date, I got the a/m thermometer and put the sensor by the driver'* side door hinge. On the package it was the recommended placement. It would work really good if the thermometer wasn't junk.