Can someone point me at instructions for removing the carpeting on the wall behind the driver's seat (or just tell me how)?

I need to get at the parking module which is mounted just behind the driver's seat, underneath that carpeting. I've got the rear deck out (easy) and the retaining bar. Looks like I need to remove the side panel in order to remove the "premium subwoofer" shelf, to which the carpeting is attached.

Any help greatly appreciated.