I was wondering if anyone knew of a factory built sub box that will fit along the back seats. I dont want to take up the whole trunk and im Not realy wanting to do the custom box thing really just want plug and play. I currently have a 10 back there that is on its last leg.....

 

you're going to have to custom build.
to get the most out of your sub, you need to build a box to the subs specs.
it will also allow you to place the box where ever you would like.


why go pre-fab?

 

Sealed box is ridiculously easy to build, but shouldn't cost you that much if you had a shop build it. $75-100 maybe. About $35-40 if you do it yourself

What sub are you using?

 

had not decided on sub yet since i did not know what the box options where. I don't want to rattle the car beside me just need to supplement the factory HU

 

...Well then...what's your budget?? The box depth can be taken up in length. My box is only 10" deep for my IDmax, but 32" long. Spans the entire length of the rear seats between the 2 little humps up near the seats. Fits perfect! It comes out to 1.68cuft before sub displacement, but the IDmax is deep and has a vented pole piece (aka...a hole on the bottom of the sub). You have to leave a little space behind the sub if it has a vented pole piece. There are subs that aren't very deep at all..the Polk MM comes to mind, & it would only need to be about 6" deep off the rear seats. The IDq 12" is just under 6" deep and does not have a vented pole piece so that box could be made 6" deep also. Obviously it wouldn't be quite as wide as mine because the IDmax needs more airspace, but my personal preference is that I like to get a little more airspace than required for a flatter response

Give us your budget and we'll go from there

 

You can go infinite baffle for the ultimate space savings and awesome sq . There was also a really neat bandpass with a single 10 ported through the skipass that took up little room and got loud.