1989 Mustang Wiring Diagrams Typical Fuse Box Engine Controls 2.3L Engine 5.0L Engine 5.0L Engine (Color Diagram) 5.0L Main Harness 5.0L Engine Harness Body Wiring Diagram 2.3L Engine 5.0L Engine Cooling Fans Circuit Door Locks Circuit With Power Windows Without Power Windows Horns Circuit.. Our comprehensive 1989 Ford Mustang radio wiring diagram shows you all the radio wire harness colors, car speaker wiring colors and car speaker sizes. Use our 1989 Ford Mustang head unit pin-out guide to help you with your car radio troubleshooting and installation needs.
![[DIAGRAM] 89 Mustang Engine Wiring Diagrams](https://i1.wp.com/diagrams.hissind.com/wp-content/uploads/2011/06/68mustang_wiring_guide1.png "[DIAGRAM] 89 Mustang Engine Wiring Diagrams")
1988-89 Ford Mustang car stereo wire colors, functions, and locations.. Relay Diagrams; Vehicle Wiring; Cruise Controls. 1988-89 Ford Mustang Stereo Wiring: Constant 12V+ Green/Yellow : Switched 12V+ Yellow/Black : Ground: Chassis : Illumination: Blue/Red : Dimmer: n/a : Antenna Trigger:. 1989 Ford Mustang - Project Real Street Part 8: Wiring - All Tied Up. Our Project Real Street 1989 Ford Mustang's wiring and other loose bits find a home before we install the drivetrain