went to a car audio shop...they suggest 8" speakers

[severous01]

well, i just got out of the shop and they want to install an 8" full range speaker from polk, the dB+ series, in the rear section of my hatch.

they said it would be around 400, including mounting, amp install, and speakers. the speakers are 179 a pair, and he said he could also install the same 8" speakers in the doors for the front, and run off the same amp for another 200 including speakers.

i wanted to just run a 8" shallow mount somewhere in the car, install the amp, and run 6.5" around. but he kinda talked me into this 8" deal. 4 full range mid, bass and high, or one 8" sub??? easy pickins...i'd take 4 8's any day.

any way, i can go 6 in the front, and 8 in the rear if issues are gonna come up for the doors.

any way, long story short, can i fit a full range 8" speaker in any of the factory locations in a hatchback?