I am getting a Rl-P 15" for my car and the only problem I am running into is making a box shape that will be able to slide into my trunk. A box shape I found that will work is a right triangle with internal dimensions of 16x31 with a hypotenuse of 34.9". The question I have is will the driver be too deep and make contact with the hypotenuse at any points? Also I would like to know if a right triangle shaped enclosure will get worse sound than a sealed cube enclosure?