Does anyone know how to have the fan just blow outside air without heat or AC? I think my car has a software bug (or is possessed). I press "auto" and "auto" and "ac" light up. I press "ac" and the "ac" light turns off. But the AC is NOT off. It's a warm day so it's easy to feel if AC is on or not. If I change the fan speed the "auto" light turns off but it still blows cold air. How can something so simple not work?