I couldn't take it anymore, I broke down and bought a few bits for the SVX:
03 WRX HU
SVXdc Plug & Play wiring harness
Polk Audio db6501 6 1/2 component fronts
Polk Audio db691 6x9 rear
I may purchase an AMP a bit later (per Crutchfields recommendation) but I dont want to get too crazy. I never have luck with car audio as they always seem to get nicked.
Pics to follow once the parts arrive.