For a MY 03-04 to go in the rear doors, i'm unsure of the size as well

cheers
Sam

 

hi, not sure if it is much help but

I had un amped PG 5 inch in the rear doors, sounded better with out them
now i have 6x9s in the rear shelf - bit of a fiddle with a jig saw and mdf but sounds much better

only good for pushing a bit more bass in to the cab, i have them set on a LP filter and a set of Infinity kappas amped up in the front and a small vibe sub in the boot

love the sound

Rich

 

Five inch are too big slightly and require a bit of either metal cutting or a plate making up. 4 inch are too small slightly