I have a 3-month old 2007 Hyundai Tucson that has recently developed an unpleasant smell when I turn on my defroster. I live in an apartment complex without covered parking and have only noticed this since the leaves have started falling heavily and the weather has turned cooler and damper in Oregon. The smell reminds me of stinky refrigerator or freezer(not from bad food, just the smell of the appliance). I mention the leaves because my late mother-in-law had a late '80s Honda Accord that had the same smell and she always had lots of leaves around and on the car in the fall and winter as she parked outside also. We've cleaned all the leaves out that we can find, but this smell is driving me crazy. Any ideas/help?