whell.. im just gettin a new engine in my 04 tl..and im thinking of adding some stuff to the audio i allready have in there witch is
2 12in jl audio w7s
4 oxygen 6x9s
a 1600watt amp for the subs
and and 800 for the speakers
also an AVIC-Z2 as the head unit

im am thinking about getting a new rear deck made but im not shure what i should do 3 8in beymas or/EV's or mabey 2 10in.... im not shure what to do here, if anyone has any suggestions on what i would need to do for the vocals to be as loud as the bass. the other thing i was thinking of was to put just one 8in speaker where the original sub was. any suggestions would be appreciated

 

i think you just want to be loud so it doesnt even matter. If you want quality in sound the rear is the last thing u worry about well besides the sub.

 

the rear deck cannot support over a certain amount of weight, also it rattles a bit so you will need to heavily insulate it with some dynamat.