I bought a used speaker that sounds good, but somebody poked and ripped the center dustcap. Dustcaps are just cosmetic, right? Is there any way I could replace it? Or should I just remove what's left of it? It's a paper one. If it was just me, I'd remove it and leave it alone, but I might try to resell or trade this speaker at some point so I'd like it to look as good as possible.