mounting 6X9's

alright well i have a jeep grand cherokee, i have my 12" PG in a big box (not sure on the demensions) i have my sub facing up. would it be a bad idea to mount the 6X9's on or anywhere near the box? i was thinkin of just leaving them were they are now which is in boxes sitting between my sub box and the hatch. but then i have no room for anything back there. could i mount them on the headliner? or the side somewhere back there? any ideas or suggestions welcome.... thanks

mount them where they sound best

anywhere you what to put them. id suggest on the ceiling above the rear seat. or in the rear doors would be a better idea.

yea cant fit 6x9's in the rear doors. i have 6 1/2" infinity's right now. right now there sitting between my box and the side of the back just enough room for them. above the rear seat sounds like a good idea tho