I'm going to go with the fact by default the recirc will come on automatically at startup when the weather's really hot and you don't even have the fan going, let alone AC. I can think of no sensible explanation for excluding outside air when it's hot unless you're running the AC.

And I'll claim current lack of motivation rather than boredom for responding, at the moment, heh.

I do disapprove of the eco button a bit but as I rarely use AC/heat it doesn't affect me much. Oh one other thing was how incredibly tight the fit was for plugging in my old cell's car charger was. I just changed cells and was afraid it wouldn't come out--I was surprised it did, I'd left it in there since I got the car and first plugged it in, afraid I'd rip the whole thing apart.