Zeracer is correct
silk plate must come up. Use plastic body interior trim tools (orange tools in one or two of the images) to pry them up evenly. The clips on them are aggressive and you can break the sills very easily

you also need to remove the side panel in the footwell. The fastener is concealed behind an oval plastic tab. That tab can be removed with a very small slotted screwdriver. The faster is a 10 or 15 torx. They are easy to lose (experience talking)

really easy to do. Makes it crazy easy if you remove passenger seat.