i have 6 1/2's in the stock location on my truck. trim the mounting ring on the speaker and trim out the sheet medal. im wanting on a 10" sub to go in the back (truck just doesnt have enough bass to keep up with the the other car (jl 6 1/2 components, 6x9s in the rear and dual 12's) the kick only has the 4"ers and the 6.5's