You are referring to the 6x9s mounted behind the rear seats right? The grills are screwed in from below. There is either 3 or 4 screws that hold the grill down. Lay the seat down and take a flashlight to help you locate them. After you remove the grill you will still have to remove the screws that hold the speakers down to get the speakers out. You access those screws from the top, so it would be best to have a short handled screw driver to get them out.