Car Stereo Radio Wiring Diagram – 1999 Nissan Altima

Whether your an expert installer or a novice enthusiast with a 1999 Nissan Altima, 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 Nissan Altima.

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 Nissan Altima.

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 Nissan Altima Car Stereo Radio Wiring Diagram

Radio Constant 12V+ Wire: Pink
Radio Switched 12V+ Wire: Blue
Radio Ground Wire: Chassis
Radio Illumination Wire: Red/Green
Radio Dimmer Wire: Red/Yellow
Radio Power Antenna Trigger Wire: Green/White
Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 4″ x 6″ Speakers
Front Speakers Location: Doors
Left Front Speaker Wire (+): Brown
Left Front Speaker Wire (-): Black/Red
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Black/Yellow
Rear Speakers Size: 6 1/2″ Speakers
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Orange
Left Rear Speaker Wire (-): Black/Pink
Right Rear Speaker Wire (+): Blue
Right Rear Speaker Wire (-): Black/White

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  • Reply shane September 1, 2009 at 11:01 pm

    This site helped me out alot. thanks

  • Reply ModifiedLife September 9, 2009 at 5:02 pm

    Shane, we are more than happy we could help you with your 1999 Nissan Altima stereo wiring diagram needs.

  • Reply Jason W. December 21, 2011 at 7:34 pm

    Thank you for the info… very appreciative

  • Reply ModifiedLife December 27, 2011 at 10:56 pm

    Jason, we are glad we could help you with your 1999 Nissan Altima radio wire schematic needs.

  • Reply andrew April 2, 2013 at 7:42 pm

    Really great to have this. found out most of my aftermarket speakers were wired backwards, giving poor sound. my question is, what 1999 Nissan Altima factory wire would i hook my remote amp wire to to give proper amp signal? the previous owner did use an aftermarket wiring harness instead tapped in to original wiring.

  • Reply ModifiedLife April 23, 2013 at 8:05 pm

    Andrew, technically you could connect your 1999 Nissan Altima amplifier remote wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 1999 Nissan Altima is on and off whenever your 1999 Nissan Altima is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier remote wire. Hope this helps. Good luck with your 1999 Nissan Altima amplifier installation.

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