I was wondering if anyone knows of any other way than from the sunroof drain that water could be getting into this area? The only thing I see and I'm not sure of why its there is a square hole in the wiper cowl right behind where the glove box is. Is this on all models and should it have a cap or plug of some sort. I really need to figure this out. Already had new transmission put in and new TCM on order due to water and corrosion damage to the original. The sunroof drain is clean.