Can I mix warm air (heat)on my feet with fresh air on my face? That should require the arrows down and on the body, correct? And the fresh air should come from the center vent, correct? How come I can only get whatever temp I select from top and bottom--i.e., if I get my feet warm enough, the top air is super hot. And to get some cool air, the air from the bottom vents is cold. Normal? If so, this sux. Anybody know of any HVAC bulletins for 99 210? Thanks in advance, allen.