When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
There is a plastic "rivet" in the vertical portion of the cover. Use a small tack puller to pry out the center about 1/2" and then the outer portion of the "rivet" can be pulled out of the metal. Then, slide the plastic cover forward while holding down on the base. Hope this helps.
The purpose for my exercise is to see if I can add additional padding to the seat center. The padding seems thin relative to the C5 seats, and I wanted to punch it up a bit.