This was mine.. Old Powerbook 5300, hacked up Gravis gamepad for key input, CrystalFontz display, Maxim power regulator (now part of my remote empeg board), and I wrote the software (eew.. pre-Carbon/Cocoa programming). Playlists, ID3 tags, shuffling, sort of editing the play queue on the fly, the whole deal. Then I put it in my (almost new at the time) Miata, and a couple months later got an Empeg and ripped it all out (Then last month I ripped all that out and put it in the trunk for my trunk install insanity).