Car Stereo Radio Wiring Diagram - 2002 Ford Mustang Whether your an expert installer or a novice enthusiast with a 2002 Ford Mustang, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car stereo, car radio, car speakers, car amplifier, car navigation or any mobile electronics is identifying the correct wires for a Read More Read More 2002 Ford Mustang | Stereo Wiring Diagram 2002 Ford Mustang Stereo Wiring Information. Radio Constant 12V+ Wire: Purple/Light Blue Radio Switched 12V+ Wire: Black/Pink The stereo wiring diagram listed above is provided “as is” without any kind of warranty. Use of the information above is at your own risk. Leave a Reply.