hey hey guy, no need to beat the poor truck up just yet, lets see, the rear speakers at the top of the hatch are these dinky little i'd say 3 to 3.5 in speakers, been a while since i checked, the speakers in each wall in the hatch are 5 1/4 i believe, i never really seen them cuz the wall looks to hard to take apart, the speakers upfront are a weird size, 4T. As for the layout, pretty simple stuff. Best bet would be to go to the dealer and have them give you a copy of it, for wiring, etc. You can go to crutchfield to find out the exact sizes.