I searched around and I see lots of custom boxes that take up a majority of the area underneath the rear seats. Has anyone every thought about making a custom enclosure out of the Sony box? Closest I could find in my search was this https://www.f150forum.com/f30/diy-subwoofer-box-duha-bin-lets-bashing-begin-149438/ post. My previous vehicle (Jeep Rubicon) had a rear sub box with an 8" Inifinity sub. I cannibalized the original box and fiberglassed in a 10" mount for a Pioneer shallow sub. Overall it sounded decent and worked well with the Infinity sound system. Doing the same with the Sony sub enclosure wouldn't be a far stretch. Thoughts?