in my front i had some alpine 6 1\2 " but i took those out and replaced them with some image dynamics 6 1\2" .
i replaced my rear stock speakers with some pioneer TS-A6970R 6" x 9" 3ways and i have 2 12" jl w0 all powered by an alpine mrv-f340
to fit the speakers i used a spacer so that it would clear the bars. used some 1/2" mdf on the back part of the speakers and they are still able to be covered with the stock speaker covers