LOOKS LIKE CAUSE MAY BE AC CONDENSATION LEAK. CAR HAS NOT BEEN IN RAIN OR WET ROAD IN 3 WEEKS
CARPET STILL SOAKED UNDER SEAT AC VENT IN THIS AREA. AC HAS BEEN USED WHEN CAR DRIVEN.
DOES ANYONE KNOW WHERE DRAIN IS AND HOW TO CHECK IT AND UNPLUG IT
THANKS
HOTROD

HELP/////
ANYBODY KNOW HOW TO UNPLUG AC DRAIN?????

Have you considered the possibility of a rusted hole in the heater core? A leaking heater core is the culprit 75% when a wet passenger floor is found.