I finally got my amps and subs wired in completely. Its not going to win any audio competitions, but it really fills the space with quality sound. I forgot what it like.
It's comprised of a Kenwood Excelon deck, 2 Rockford Fosgate 10" Punch subs in a custom built box, a Rockford Fosgate amp to power those, and another Rockford Fosgate amp for powering my component speakers.
This system was built by Street Sounds for, and taken out of, my old 2.5rs. Been in storage ever since. The whole set up cost a mint back in the day. Luckily the Legacy has the same trunk structure, and the box fits in there perfectly.