How do i finish my box now?
 

I've got most of the boxes assembled, but I've run into complications and I'm not really sure how to go about finishing this up.


First of all, How would I go about cutting the angles on my baffle board, to fit it on to the box securely.
You can see in this picture that I need to make an odd angled cut to make the board sit flush with the short piece.

http://www.quasihost.com/Car/WeirdAngle.jpg

Now my other problem is how to cut the baffle board to fit it around the large 12.5" tube I bought to mount the subs into.
As you can see, the tube fits snugly into the box itself, so the baffle board will either be cut really close to the side of the box or it will be a two piece baffle board that will go around the tube.

The other problem with this is, the "circle" I need to cut to slide the tube into, will actually need to be a parabola/oval so the tube will slide in straight... How do i figure out how big this hole needs to be, I don't want there to be a bunch of extra space around the tube.

http://www.quasihost.com/Car/TubeInBox.jpg


Essentially when its all done the tube will be mounted in the box like this..... only better :)

http://www.quasihost.com/Car/TubeMounting.jpg

I really need some help to finish this up professionally, and neatly.
I have the skill, I just need to know HOW to do what I need to do to finish it up.

recut the 6x12 pcs with the 45* on it
i can not type wit my son now

hold the tube mark it where it is cut the tube
place it on wood mark and cut it out

the angle isnt a 45 ... its like 58.2 i think, and yeah, im going to recut those small pieces and angle them along the edge.... just plain easier.

just put the front of the box on and then when it is on use a jigsaw to cut the little triangle off that will be excess and then sand it down smooth after that. As for the hold for the tube, I am not sure why you even want to have a tube in there and if I were you I would abandon that idea

I didnt want to angle mount my subs, and i didnt want square boxes as i need to maximize trunk space (i still use it)

Also it adds a little more volume to the box, and in the end, i think it might look cool..... mind i am still open to abandoning the idea if it gets to be far too difficult.

It would be easier to mount a ring on the angle you want and fiberglass it. Especially if you just plan on carpeting it, then the finishing work required is minimal

i was going to make a fiberglass cover for the whole thing that will also make it look like a part of my trunk.... problem i dont know how to make a mold for the space arpund the boxes that i want to fill in.