I am considering fabricating a custom sub enclosure to replace the Bose unit and was wondering where people get matching carpet?

2011 997.2 GTS Coupe

 

I never could find matching black carpet when I removed the sub from my Cayman S (another story). The best solution was to use automotive carpet sections they sell at autoparts stores, Oreilly's in my neck of the woods. It comes in like 4 x 4 ft sections and is reasonably priced. Any, it looks good enough unless you get your face down in the footwell.