I should have explained a bit better.
When you do an install like this there are three options,
1. Cut away some of the plastics to allow for a deeper install and utilize some of the existing plastic as part of the box.
2. Remove the plastic completely and make a whole new panel that replaces the original and incorporates the sub.
3. Build a totally separate enclosure and attach it to the base of the floor or have it freestanding
The first one requires the least amount of fab for a custom install. The second requires the most and would require the technician to have a lot of patience and ability to create something that is better than the original panels.
The last one is the easiest but almost always results in loss of some space in the cargo area / trunk.
The only way I found to create a new custom box that was repeatable was the second option and to be honest, I just don't have the patience to do it any more.
For those of us with the factory sub there is one more option. Remove the inner "speaker box" from the side panel and use foam to create a mold of the cavity and create a new box with more volume so that a larger speaker can be utilized. The increased size (volume) will also help prevent another problem that we all have with big bass. Vibrations. The custom inner box is installed with a foam tape to support the outer panels therefore keeping some pressure on it and preventing it from vibrating. It may be a bit of a balancing act to not use too much pressure on it that would allow the outer panel to crack but with big bass there is always something breaking so ...................
I hope that is a bit clearer.
Still no plate BJ?
I think you need some more convicts in your state.
