in the back where the seat is you wont be able to the size that i think it can fit is 5x3's but if you want 6x9's you would have to drill your tray into 6x9 size that way you can fit them in it sounds good i did it mine but only problem is you wont here the bass cause its not made for it
if your looking for bass and not treble your best on getting a sub 10inch would do the job if your not picky try it out