I finally convinced Dan to lose the rats nest and let me show him the power is zip ties.
The whole project cost just short of $30 for wood nails and carpet.
We scrapped the fuse block and grounded through the cap. with 2ga primary and 4ga wire to the amps/cap.
Obligatory sig pic:

The amps and cap are at 45 degree inclines but its hard to tell from the pics. The rear deck is really crappy looking now, it will be replaced with fiberglass pods holding 6.5" mids and the stock holes will be opened up to let some pressure in from the trunk.
The cap is bright as hell, I'm gonna add some blue lighting to the sides to offset it when I redo the rear deck.