I found a thread saying that when you use the rec button to cool the car too much it can lead to mold. well I think I have this problem. when I use my a/c ONLY I get this terrible smell like mold that comes out the vents. what can I do to stop this? I googled this stuff called "frigi clean" but you have to inject it into the coil drain or something like that. have no idea where this is on an 09. anyone else have this problem. its ONLY when the a/c is on and SLIGHTLY when I first turn the heat on.