I finally decided to upgrade the stock stereo in my STI. I decided to go with Pioneer DEH-7800MP.
Key factors that influenced my decision:
Full color display with changeable "screen-savers"
Spectrum Analyzer
Level Indicators
50W x 4
BBE (unbelievable results with this)
Complete cross over capability
Remote
Configuration
For now, I am using the stock speakers; I have adjusted the 7800MP's cross-overs to only pass 125Hz and above the all 6 stock speakers.
For the lows, I installed my Kicker Contender box in the trunk. This box is modified to only operate the 12" drivers. The amplifier is a PILE A200.
Depending on the source material, I use the SUB filters to pass frequencies below: 200 ~ 50 Hz.
The sound is surprisingly good considering the stock speakers in the cabin.
Click here to listen to high end recording of my sound system (and other STi Mods)...
Photos of my install