It was a very time-consuming task to build the sub-woofer box with fiberglass. First off, my initial calculations wouldn’t work. After building a template, the angles were all wrong. Adjusted and made different style template with better luck. Once I was satisfied, I started cutting out some 1/8” plywood as my base box. I used some corner molding to nail it all together. Also put in some boards to flatten up the centers and edges. Then I applied the first layer with only 1-pound mesh. I then went back to store and purchased 1.5-pound mesh and more resin. I tested the fit after the first coat. I had to trim the top corners to get it in easily. I also had to cut the top/right because it was hitting the rear speaker. I put a small notch in the rear angled panel for the jack bracket welded to the trunk floor. Here are some pics. During drying times, I finished the resin and filler on all my trunk panels. Then I cut out the holes for the grills. I put in the box and placed the front panel in to see my concept. Here is a pic of the port I made. I did two coats of 1.5 mesh on the entire box, except the front. I then proceeded to put mesh on all the inside corners and fiberglass in the port. I did cut out the front panels. The passenger side is made of ¾” birch plywood. I wanted something thick to screw in the speaker. The other side is ¼” plywood. I will be putting on two coats of fiberglass on the ¼” and only doing fiberglass on the edges of the ¾”. Thanks for checking out my progress.