Ford Repair: CROWN VIC LEAKING, crown vic, interior panels

Question
HERE'S ONE FOR YOU.  THIS IS COMPLICATED, SORRY. I HAVE INHERITED A 1990 CROWN VIC THAT ACCEPTS WATER IN THE DRIVERS FLOOR EVERY TIME IT RAINS, GOES THRU A CAR WASH, OR GETS WASHED AT HOME.  THERE IS NO VISIBLE SIGN OF A LEAK AROUND THE DOORS OR WINDOWS OR WINDSHIELD. EVERYTIME IT RAINS, NO MATTER WHAT ANGLE THE CAR IS PARKED THE FRONT FLOOR- DRIVERS SIDE ONLY FILLS UP WITH WATER.  HELP!  WHERE IS THIS COMING FROM???? NO ONE CAN FIND THE PROBLEM.  I AM CONSTANTLY USING TOWELS IN THE FLOOR TO SOAK UP THE WATER. IS THERE A HOLE UNDER THE FLOOR THAT WOULD ACCEPT THE DRAIN OF WATER DOWN THE CAR????  WHAT????  THIS IS REALLY MESSING ME UP.  I SAT IN THE CAR AND WENT THRU A CAR WASH AND WATCHED THE FLOOR GET WET.  NO WHERE ELSE WAS WET.  JUST THE CARPET IN THE FLOOR.

Answer
Hello and thanks for the question...I'll try to help.
I'm NOT a body person, I'm a mechanic..........BUT, what I suggest you do is take off the interior panels and moulding and have a friend use a hose and wash down the car.........see where it's leaking.
Erik