I bought a pair from the dude on Ebay and just got them in. I have to admit, they are friggin' sweet and install was seriously a breeze.
You can 3M tape the tops or use the supplied clips to hold the tops in place. I opted for the clips and they hold well.
Anyway. They are working well and will hopefully keep debris of the quarters!
Here is the page where I bought them!
http://www.ebay.com/itm/2010-2013-CA...dc1f84&vxp=mtr