should be a screw hidden behind a tiny cover inside the hole for your inside door release handle.
one in the hole in the armrest where you grab to close your door when you get in the car.
i believe you have to remove the trim piece around your inner door release handle. Be carefull, i've broken a couple.
then get a trim stick in there behind the panel and only plastic fasteners hold the door panel on. they pop off with some force. start at one corner and work your way around.
pretty sure that's it.