http://www.tune-town.com/free/1988_HONDA_PRELUDE_%202DR%20COUPE_wire_diagram.htm
http://www.modifiedlife.com/1989-honda-prelude-car-radio-stereo-wiring-diagram/
http://www.commandocaralarms.com/wiring/1987-1989/Honda/Prelude/982.html
http://alarmsellout.com/support/diagrams/vehicle/HONDA%20PRELUDE%201988-2002.pdf