UPDATE:
So I continued my cheap-o deadener install throughout the trunk and rear deck:
I found that the bass response in the car got much tighter and much warmer. I also ended up pulling some lower frequencies out of the EQ because it got a bit louder too. Rear deck vibrations were reduced quite a bit and volume from the exterior was reduced as well.
As far as new components go... I am finally gonna start my front stage installation!!!
I already have this new planet audio three channel active crossover wired up.
It's mounted under my consul on the floor and the sub channel remote gain is mounted in my little cubby thing along with my iPod cables and parking brake bypass switch:
I ran all new speaker wire tonight from my four channel 4x50w amp to the four front speaker locations.
I fished the left and right woofer leads through the little gaskets in the door frames:
Finally, I made these mounting rings today for my new woofers:
My new drivers are coming in the mail tomorrow and I can't wait to get them mounted up! I still need to make some mounting brackets for the tweeters to mount into the stock dash locations. In the future I will make up some a-pillar mounts for them but for now I want to keep the car as stock as possible.
Tomorrow I'll be deadening the doors to an extent and mounting up the new woofers and tweets.
Pics to come as I unbox the new drivers!