So basically I am having a lot of trouble finding a way to build a proper box for my Sundown X-12 V.2
I have a 2004 Mustang GT and these are the measurements I found for my trunk: 35" W x 15" H x 34"/27" D Enclosure specs per sundown: Sealed Enclosure Not Recommended
Ported Enclosure 2.5 cu ft
Recommended Tuning 32Hz
Recommended Port Area 40 sq in
Displacement 0.2 cu ft
Depth 9.67″
Outside Diameter 12.68″
Cut-Out 11.09″

I am quite positive the measurements I found on Crutchfield would not include the spare tire space if that was taken out.
I really need help figuring out if I will even be able to build a suitable enclosure that will fit in my trunk for this sub and or how I would go about designing/building it.

Thank you.