Many times you ask yourself what is that smell in the car after a rainy day when you put the AC or ventilation on. Many times its just a debris from leafs and other outside items. Every card pretty much has the same issue. Sunroof or intake drain holes are clogged.
Well, its pretty easy to clean them up.
All you have to do is remove the wheel well and look for a rubber plug. You can remove the wheel well with 4 torx screws and you will find the plug. Either remove it or just pull the tab and insert a screw driver in there to loosen the debris as you see below