chambering subs in a box

I know this question has been answered before, but I still haven't gotten a straight answer, and I need help!!

I have a 01' PT Cruiser.

I have 3 JL 15" W3 V2 subs, and 3 Kenwood Bass amps (subs and amps are the same models).

I'm going to be making a fiberglass sealed enclosure for the 3 subs.

Now, here's the problem.. the trunk in a PT isn't very large or wide. It JUST fits 2 15"s side by side, so i'm going to need to somehow have 2 up and angled in, and one in the middle sort of pushing out so I can fit all 3 back there. I think it's going to be impossible to chamber them off, because if I do.. I won't have any room to chamber the sub in the middle. If my description makes no sense, I can try to draw a pic and post it.

Is it important to chamber off each sub if all 3 subs and amps are the same exact model?. If I need to, I need ideas.. and fast!!! lol

Thanks!

I believe that my original post stated to chamber off the subs or run one amplifier only. (may be wrong and I have been before). Chambering off of subs does many things, for one it makes the box much stronger. With 15" subs you need as strong a box as possible. Next, even though you have 3 identical looking amplifiers, they are in fact far from identical. The efficiency of each amp will vary, the parts used will vary, the crossovers will vary and the gain pots will vary. You need to have a O-scope to properly set the crossovers and the gains. When 3 subs can interact with each other, when being driven by 3 amps, you can ultimately cause a failure of one or more drivers, especially if the drivers are working against each other because of the different tolerances in the amps.

Imagine your vehicle and trying to calibrate 4 engines to the 4 tires, how succesfull would it be and how long and hard hard would it be to make it work properly. 

Each sub is dual 2 or dual 4 ohms.. depending on how it's wired. I guess i'll wire in parallel.

Ok so i've come to the conclusion that I need to chamber off my subs then. Next question is, how?. The trunk isn't all that wide, so how can I position the subs to get a good chamber for each?. I was planning on one to the left and one to the right of the trunk, up high, and sorta pointed towards the middle, and the 3rd sub in the middle of the box pushing out towards the trunk lid. I am stuck tho on how I can chamber the subs with one of the subs being in the middle of the box. Any ideas??

Ok I attached a pic, I know it sucks, but at least it will give some idea of my problem..

Ok so, 1 and 2 are sorta facing the middle facing up, and 3 will be in the middle, facing out. Regardless of how they are facing, 3 will be in the middle. Problem is, that is where the chamber wall would be to chamber off 1 and 2. See what I mean?. So, I think it's totally impossible for me to do that set up. The only other solution I can think of, is have 3 subs in a triangular fashion, like this...

Now to do that, I would have the room, and each sub would be properply chambered. Only problem is, all 3 would be facing the trunk, and i'm afrain of major rattles, even with Dynamat.

Any ideas or suggestions??