I did try taking out the carpet in my Mazda just a little when trying to run cables under it to the boot. Its actually quite difficult. Sure there is no glue, and it really is all poppers and natty little screw-in clips, but its held down all over the place. By the kickplates, seats, runners for the front seats, pillar trim, wheelarch trim, centre console, rear vents etc etc. Its all one piece and very stiff too. Not as easy as it sounds.