Seeing as this thread has come back to life, my new system:
Sound deadening almost done:
Custom lower door panels housing twin sets of ARC6000 components:
Kick panels modified and fitted with a set of ARC6000 components. Tweeters mounted in the dash like before:
ARC Audio PEQ parametric equalizer mounted in custom center console:
Four ARC10D2 subs in a custom box with white plexi inlays to hide mounting screws for subs: