When it rains I find water under the drivers floor mat.

I had the same issue with my Aspen! After taking it thru an auto car wash, water came flooding thru the sun roof and on to me and my wife! An hour later the computer shorted out on me. So i got it too the dealer and they said the sun roof drains were clogged up and water pooled up somewhere and fried a circuit somewhere. So they unclogged the drain and replaced "a part", and i was on the road! The mechanic said Aspens and Durangos have that issue all the time! Changes are you could have the same issue, its just finding the leak in the drainage system!

sunroof drain tubes are clogged, I had same issue several times.

I had the exact same issue. I had standing water in the front floorboards, the electrical system failed and they replaced the battery(very expensive). He ceiling was wet and dripping. The front drivers seat moved back and forth on it's own and the headlights blinked all night until it did run the battery down. I have had an unusual number of batteries replaced in this car. The dashboard is now warped! All this damage was due to clogged drain tubes in the sunroof.