How to make kick panel pods????

[fastbagged68]

So I decided I would install the speakers my wife bought me last year in my yesterday. I made a speaker ring and used a piece of 3/16" plywood. I think it is 3/16". I used dowels to stand off the speaker ring. I wrapped it with fleece and stapled it to the backside of the plywood. Now I bought some resin and planning on applying resin tonight. Do I need to use fiberglass mat or will the fleece work. The ring is secured with dowels and the plywood back. Some forums say yes some say no..... Any help I would appreciate it!!!