Is the wet area specific to one side? You may also want to check the water deflectors interior to the rear doors if the door seals themselves check okay. When the water deflectors fail especially at bottom edge of door, water trickles in underneath the interior door panel, then under the carpet strip (threshold),then works its way under the carpet. It'* a very sneaky hard to find leak. As a quick check, remove the interior door panel, close the suspect door, walk around the car, open the opposite side door, lay on the bench seat, have a helper pour a quart of water right down on the window of the door you think is leaking. You'll see exactly where the water is entering.
2003 SSEi, Light Bronzemist Metallic - All Stock For Now
IBEW Local 261 Groton, CT
My other vehicle is a nuclear submarine.