Here is the 89 Sidekick that was Pioneer'd out. 2 amps under the seat, head unit, 2 tweeters on the b pillars, 2 6.5" mids in the front doors, 2 4.5" full range in the rear side panels, 2 8" subs in a ported enclosure behind the rear seat mounted to the tailgate. It was 550w total power and I'm sure it caused my tinnitus.
Neat. And I happen to have this sitting in my office. Not sure what its worth, and was contemplating selling it. Been in the family since new.