An update, to help anyone in the future who has a similar problem. I have significantly reduced the possibility of the water getting in, however it is impossible as an individual to fix the root cause. In a component known as "Upper Rail" there is a hole, one could only imagine it to be for deformation during a crash. See Image 4. When rain was running down the windshield and into the cowl (see image 1 and 2) it was running directly into this hole. See image 5 and 6 for more clarity, blue marking is by me showing the flow of water. This "Upper Rail" is attached to the firewall/cowl/A-Pillar via 7-8 spot welds that I can see, not including the sandwich of sheet metal being welded together that you can see toward the bottom right of image 6. I have tested by putting water directly into this hole that water will immediately start running into the car through the aforementioned hole in image 3. The only thing I can think of is that one of the spot welds have split and is allowing water to run into the vehicle, as this section is not open and should be considered sealed(I also confirmed this with my borescope). Image 7 shows how the main body is closed, not intended to route water through, the green line running North to South is the "sandwich" of metal that I mentioned earlier, this is sealed with some sort of hard rubber and spot welded together. All of the green dots are the approximate locations of all spot welds that I could find. It is possible that this not a bad spot weld, but rather bad sealing around the joints of metal, as the sandwich of metal joins the two halves of the door frame, which is the cavity which is taking on water. As a temporary fix, while FCA Customer care is deciding if it will help me or not I have used butyl rubber and some 4mil plastic as a means of redirecting the water which has proved to be quite effective, see image 8. Since the area of issue is very inaccessible unless the car undergoes severe body work, the only viable solution would be to seal the entire cavity with a rubber sealant, as the exact point of entry cannot be determined. Long story short, FCA does not HAVE to help me due to the basic warranty being expired, but this issue has probably existed since the car was created and is in fact a manufacturing defect that is very disconcerting. If a weld is bad, how many other welds on this car are bad? If its not the weld, what about the sealant, where else is the sealant bad? The carpets are incredibly difficult to dry, especially in this winter weather. If I remove the seat to make it easier, I fear the safety systems will disable even if I remove the battery (my old VW did this due to the side seat airbag). Another thing is, water and electricity don't usually mix and corrosion usually follows, the safety system cables were absolutely soaked on the drivers seat. Lastly I can't resell a car that is flooding with water, making the value of this car that of scrap. Honestly, this is just unacceptable, I will not be purchasing any FCA product ever again this whole situation should never happen in a modern day vehicle.