Car Stereo Radio Wiring Diagram – 1999 Ford Mustang

Whether your an expert installer or a novice enthusiast with a 1999 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 1999 Ford Mustang.

The Modified Life staff has put their heads together to create an invaluable resource containing free car stereo wiring diagram, free car wiring diagram and free radio wiring diagram. Feel free to use any car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1999 Ford Mustang.

If you can’t find your car radio or stereo wire diagram on Modified Life, please feel free to post a car wiring diagram request (Radio Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.

1999 Ford Mustang Car Stereo Radio Wiring Diagram

Radio Constant 12V+ Wire: Light Green/Purple
Radio Switched 12V+ Wire: Black/Pink
Radio Ground Wire: Black
Radio Illumination Dimmer Wire: Light Blue/Red
Radio Antenna Trigger Wire: Orange/Light Blue
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Wire (+): Orange/Light Green
Left Front Speaker Wire (-): Light Blue/White
Right Front Speaker Wire (+): White/Light Green
Right Front Speaker Wire (-): Green/Orange
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Wire (+): Gray/Light Blue
Left Rear Speaker Wire (-): Tan/Yellow
Right Rear Speaker Wire (+): Orange/Red
Right Rear Speaker Wire (-): Brown/Pink


  • Reply Gary March 31, 2011 at 9:28 pm

    I have a 99 mustang GT convertible. when following the wiring diagram here there seems to be two wires that im not sure what they are for.. 1. solid dark blue. and black stripped.. If you could help me to identify these wire would be greatly appreciated. I have a mach system that has a pre installed amp.

  • Reply Wayne July 11, 2011 at 4:42 pm

    Anyone know where the radio/cd amp located on a 1999 Ford Mustang? Thanks.

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