You can if you cut the plastic into a 6X9 oval and put a cover on it, otherwise no. The only thing that (sorta) fits are 6.5" round. They actually look better if you get rid of the honeycombing and put your own grill on top with it mounted outside the panel. Up to you.
Pioneer HU2 x D3tAK tweeters in stock location (M&T)4 x Diamond Audio D162.5i1 x Pioneer TS-W309S4 SubPolk Audio Pa330 (To drive Sub)