My system was nothing special, but decent sounding. I chucked it when I had a problem with the amp. Pioneer head unit (DEH77?) to Soundstream 5 channel amp (better old style) to JL 10w04's mounted in the rear side panels.
Pioneer seperates up front, and 6x9's out back. I just run the speakers off the head unit now, kind of miss the subs though. I did it this way to hide everything, and keep the CG of the car more forward and low for racing. I did have a box out back with the same subs; it made much more bass, but couldn't get the car to hook at the strip.

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