Well you deffinutly dont want to put 6x9's on a shelf if you have a sub in the boot, it will destroy the 6x9's!
Yeah i would as that will sound best. If you are really serious you could sound deaden the doors and upgrade all the wiring but tbh its not necessary unless you are really serious about the sound quality.True!
So some Components in the front and some coaxles in the rear all amped up then?