Airborne,
It is uaually as simple as using marine carpet (rot resistant) and gluing in with contact adhesive.

Hope this helps.

Regards,
Phill

PS:-Do you have the room in 5.2 slots for carpet?

I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!