I might be buying a jeep wrangler in 6 months after this semester of school. Currently I have a ssd15 and I was looking at the jeep and I don't think I can fit an optimal box for the 15 in there. I was brain storming and I came up with an idea. I would take the rear seats out and make a box for two 12's facing forward with a big old port in between them. And build a seat on top of the box. Now should I recone my 15 into a 12 and buy another? Or should I sell it and buy either 2 sa12's or 2 Fi x12's? I am going to run a precision power bk1300.1D. And a set of Polk db 6.5 components off a power bass xax(400.2?) 100rms at 2 channels. All help and advice is much appreciated. And any reccomendations of other subs would also be much appreciated. Thanks guys.

You don't have the vehicle so how do you know how much room you will have? How do you know 2 12s will even fit properly?

well i had the jeep all weekend. and it looks like plenty of room. i would put my 15 in but i dont think i could get a box that would be symetrical with the sub out of the way. the deal is if i pass all my courses this semester my dad will buy me the jeep, or any vehicle around that price range that i want. so one of the first things i thought about was my system. if i really cant have a system in the jeep ill look for something else. but the jeep would be a fun toy to have. and yes i could fit a box for 2 12's in there. if not ill get 10's. the question was more about what type should i be researching right now. i have a 1300rms amp that would be running the subs. 

I've been down this route before, and I regret doing it. Only advice I have is not to make anything irreversible, and store the rear seats in the event that you want them back in.

 

Might help if you specify what year and size wrangler you're speaking of.

2002 wrangler 2 door 4.0l and I was thinking about making the entire rear the box with a big port through the middle facing the front with 2 possible marine subs facing up behind the back of a seat that I would make. So the top of the box would be where the rear passengers sit on with a back rest of course. And behind the back rest would be either 2 12's or 10's. Not exactly sure. But I was thinking buying marine subs so I wouldn't have to worry too much about getting them a little wet.

I have a 2013 JKU and LOVE it.

 

This idea of using the box as a seat is pretty bad. First off... IT is illegal to jerry rig a seat and mess with  safety belts. Second of all, it is just plain uncomfortable for your passengers. Finally, jeeps are easy to break into (especially if it is a soft top). And one more thing... you must assume you will get rain/water in your interior at some point and you should account for that.

 

what I would do..

they make some nice sub enclosures for the back of a two door jeep (http://www.quadratec.com/products/14136_3903.htm) or (http://www.google.com/imgres?imgurl=http://www.quadratec.com/Assets/Images/59648/59648-lg.jpg&imgrefurl=http://www.quadratec.com/products/14136_320.htm&h=600&w=602&sz=52&tbnid=LjdQeX1fuj24LM:&tbnh=90&tbnw=90&prev=/search%3Fq%3Djeep%2Bwrangler%2Bsub%2Benclosure%26tbm%3Disch%26tbo%3Du&zoom=1&q=jeep+wrangler+sub+enclosure&usg=__qD4E8m2PBPKv4tjc4AWyOw1phSg=&docid=m_sxiBzzVf3ifM&sa=X&ei=RhY5UvrBKLj_4APHzoDQCQ&ved=0CH4Q9QEwBg&dur=0.. get a 10 to put in it, there is a covered place for your sub amp and enjoy it. You cannot get good bass with a jeep, many have tried (including myself with 2 SA-8s in a ported enclosure).

You can fit 2 10 1 12 or a few 8 in there and have all your seating stock

 

http://www.****/forum/build-logs/890-jeep-wrangler-vid-pics.html

 

This was 5 years ago.  It hit the lows and never stopped.  I pulled it out a few years ago and just started my rebuild with 2 10 in 2.14^3 tuned at 25hz.  Smashed the lows til it rained on them.  lol  I am now looking for 1 12" to handle my IA 20.1 v2.  Should be a little louder then the skar vvx10v2's.  Box is right on the edge of the top metal part on the rear gate so I can put my tonneau cover on.

heres the box and jeep  7" lift sitting on 35s