Fucking hell that's awesome... a car PC, custom rear-view monitor, wall with giant speakers in an era waaaay pre-rap when no songs had any < 50hz material at all (so he had to build real-time audio hardware to generate that material), multiple alts, battery banks. In the mid-80s. This is shit that 99.99% of people in car audio just started doing like 5 years ago. Fuck me.