2006 Jeep Grand Cherokee Rainwater soaked carpets

I believe my problem is only rainwater and not an A/C or heater core issue, although not 100% positive. I do not run the A/C often and water does not overtly smell like antifreeze. I bought the Jeep from a dealer's lot about a year ago in 2013 so I do not know much about the vehicle history. I do have a warranty from the dealer but not sure what all is covered (I will have to check on that, but not sure if something like that would be covered). I notice when it rains that I get wet floorboard carpets on the driver's side, passenger side, and a bit in the rear on both sides as well. I have a sunroof (I asked my local mechanic to clean out the drain tubes when I had my first oil change done); I don't know if that could be the sole culprit or not. I cannot access the interior pillar where the door grab handle is (must be a specific thin walled socket because all of my standard sockets are too wide to fit into the space provided. It's a 7/16 bolt I believe, but there is not a lot of room to get any sockets I have to access them). I don't know if it could be the cowl somehow or something to do with the air intake vent or what. Could it be a gasket (none seem dry rotted) or windshield seal? All the electronics work. For now, so I don't know. I have started to wet vac my carpets almost every time it rains so not to get mold, rust or other irreversible or costly damage, but this is becoming tedious and very time consuming (I only have on-street parking). I do not know if I can afford a long and timely diagnosis from my local mechanic as from what I understand it can be very difficult to even find the source of where the water is penetrating the interior. Any suggestions, experience or advice to help diagnose or resolve this problem would be much appreciated as this is becoming an increasingly frustrating problem for me. Thank you for very much for your time, research and interest into helping me to resolve this recurring issue.

Thank you again,


James