i have an 89 custom cruiser and wanting to upgrade the sound system. I figured someone here may have some 77-90 experience. problem is GM's terrible speaker location and terrible sizes 3.5" on the dash aimed at the windshield and the horrid 4x10's in the d pillars. I'm not too worried about the 4x10's but I need a better option for the fronts. I'd love some kick panel speaker pods but my scouring of the interwebs hasn't turned up anything other than some universal ones. Anyone found some? or maybe some door pods (which I'd rather avoid but they still beat the dash speakers). I'd run just a front stage and sub stage if need be, i did this in an 89 acura legend coupe and loved it.

my setup will consist of: no head unit
Clarion EQS746 pre-amp/equalizer with aux for my tablet/phone/whatever has 3.5mm jack
a/d/s PQ10 (mids/highs)
MTX RT2600 (sub)
yeah, my amps are pretty old but they get the job done
15" sub (hopefully installed in the spare tire well)