it's cold, and i got frost! duh! but when i switch to defrost, i get only a small amount of air out of the driver side of the vent, and NO air out of the pass side! UGH! do i have to take apart the whole dash to get to it, or can i just take out the radio? and what are possible reasons for no air flow? thanx guys

 

In order to really get in there and try to find out whats going on the dash will probably have to come out. There are vacuum line connections behind the glove box and the connections into the back of the controls, you should probably check those first.