So no one has attempted this?

I took a look at the impala dash and the head units are the same size I believe:
so theoretically, aside from the additional sensors needed, it should be plug and play
http://www.chevrolet.com/hhr/pictures/
http://www.chevrolet.com/impala/pictures/

the trucks ac won't fit but the radio will
http://www.chevrolet.com/silverado-1500/pictures/
http://www.chevrolet.com/traverse/pictures/
same with the impala
http://www.chevrolet.com/malibu/pictures/

Seth

 

I have yet to meet an auto-CC that can react to MY needs (as opposed to what the computer thinks I want) faster than I can reach down and turn a knob. Less to go wrong, it takes no effort to adjust the temp myself and it keeps the cost low. Every instance I've been in a car with auto-CC, I've not enjoyed the experience. How often do you really need to adjust the HVAC anyway?

It's almost as necessary as remote controls for a car stereo.....because extending our arms and using our opposable thumbs has become simply too much effort to expend? Doomed I tell ya. Doomed.

 

Honestly,
I've just gotten used to climate control so if I can have my cake and eat it too it would be nice. But yes in florida we just leave it at max ac and mess with the fan speed all the time.

Seth