When I have the selector on either top or on the floor, it always comes out of all the vents!  Someone once told me that it is a controler in the dash & you have to take out the dash, does anyone know what part that might be?  This is on my 00 Z24.  I am going to be putting a new deck in & will have some of the dash off!
Thanks guys!
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2000 Cavalier Z24 A4 Green Met.
 
 
Anyone know what would cause this? 
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2000 Cavalier Z24 A4 Green Met.
