Ok guys I know the topic sounds way overkill but thats just me in general

anyways I still have my first stereo from roughly 3 years ago that I had in my jeep

I now have (or am getting) a 1989 Pontiac TTA

Im gonna build a custom ported box for my 15s

but I got a few questions

I am going to need 5.5 cu/ft, is this possible with the back seats folded down?

Here is what I need

I got 3 amps 1 for each sub and 1 for all 4 speakers

I dont want this box to interfere with the back window

what I had planned on doing was facing the subs towards the front of the car and having the ports in the way rear area facing the ceiling and putting the amps on top of the box in general


anyone got drawn out plans for a dual 15s box? please dont say go measure cause the car isnt going to be in my posession for a few weeks

anyone out there even have a box for dual 15s?

maybe someone has a smarter suggestion for the box and/or placement of the amps or subs?

thanks alot guys

Carl