Although I have not done it myself (with my dead pedal cover) I would suggest using velcro also. I plan to shave the carpet down (in a rectangular shape to match the velcro on the back of the pedal), then used carpet/headliner adhesive to attach a velco base for the pedal. I also thought about using a carpet/heavy duty sewing needle to tack some velcro on the carpet. You have options without using screws, which might ruin the look of the pedal.

TKD