Car Stereo Radio Wiring Diagram – 1999 Toyota Avalon

Whether your an expert installer or a novice enthusiast with a 1999 Toyota Avalon, 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 Toyota Avalon.

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 Toyota Avalon.

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 at the bottom of this page and we’ll do our best to find you the information you need for your mobile installation.

1999 Toyota Avalon Car Stereo Radio Wiring Diagram

Radio Constant 12V+ Wire: White/Gray Dots
Radio Switched 12V+ Wire: Black/Gray Dots
Radio Ground Wire: Brown
Radio Illumination Wire: Green
Radio Dimmer Wire: N/A
Radio Power Antenna Trigger Wire: Black/Red
Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 4″ Speakers
Front Speakers Location: Doors
Left Front Speaker Wire (+): Pink
Left Front Speaker Wire (-): Purple
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Blue
Rear Speakers Size: 5 1/4″ Speakers
Rear Speakers Location: Rear Doors
Left Rear Speaker Wire (+): Black
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Red
Right Rear Speaker Wire (-): White

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  • Reply bubba javier September 30, 2007 at 5:08 pm

    looking for 1997 avalon wiring diagram for the stereo system.

  • Reply ModifiedLife October 1, 2007 at 12:04 am

    Bubba, ask and you shall receive: 1997 Toyota Avalon Radio Wiring Diagram

  • Reply bob kniaz October 2, 2007 at 4:55 pm

    i need the wiring diagram for the stereo system in a 1997 avalon. tx

  • Reply ModifiedLife October 3, 2007 at 12:16 am

    Bob, ask and you shall receive: 1997 Toyota Avalon Radio Wiring Diagram

  • Reply mike February 20, 2008 at 6:20 pm

    I am looking for a picture of where the wires go on a stock radio for a 2006 toyota corolla

  • Reply ModifiedLife March 4, 2008 at 4:14 am

    Mike, ask and you shall receive: 2006 Toyota Corolla Car Stereo Wiring Diagram

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