The following audio system circuit and schematics diagram apply for Toyota 4Runner/Hilux Surf 2002 model years. Here you will find detail information and illustration of the 4Runner/Hilux audio components and system circuit diagrams.
This manual is divided into sections as follows: Specifications, Connections, Service Extension Cable, Main PC Board Schematics and Wiring, Display PC Board, Eject PC board, Connector PC Board Wiring and Schematics, Exploded View and Mechanical Part Lists (includes chassis and panels), and Repair Electrical Parts List (capacitor, transistor, etc.)
Find more information about Toyota 4Runner | Hilux Surf Audio System Circuit and Schematics here. (source: castulucci.com)