90 ST: It's a powered 8" sub.
I've made some progress and all my components have arrived, I could take pics but they wouldn't be much different from what you can see on Crutchfield.
Install is scheduled for this upcoming Tuesday, May 3rd.
Here is what will be installed.
Kenwood DDX318 head unit $399, more power, touch screen, dvd player, no blue tooth or nav, thought I can add nav to it later if I'd like.
Kenwood DDX318 DVD receiver at Crutchfield.com
Alpine SPR-13S component speakers $179
Alpine SPR-13S 5-1/4" component speaker system at Crutchfield Signature
Sound Ordinance 8 PT powered sub $199
Sound Ordnance™ B-8PT 120-watt compact powered subwoofer at Crutchfield.com
Install quote is for $400-500, plus $80 or so for the steering wheel adapter/setup. So overall hoping for a big step up in sound quality for $1200 or so.
I'll post results later. Hopefully this will help someone in the future.