Maybe you should have done port up in this one. You don't have enough space from the port to the back hatch. I have a 00 mountaineer and its loudest 8-10 inches away from the hatch vs 4 or 5.
I have a 94 explorer, hoping to get 2 aq hdc3 18's. Is it possible to build the box up and over the wheel wells in the back? I want the box to be as low and back away from the hatch as possible. The box has to be around 12 cubes net. If I built a box over the wheel wells (wide up top and narrow at the bottom) Will that mess up the sound?