2009 Nissan Altima Car Radio Wiring Instructions

Make your car stereo install easy with our 2009 Nissan Altima car stereo wiring diagram. Use the 2009 Nissan Altima car radio wiring diagram below to complete your car stereo installation. Our car wiring diagram tells you what every wire in your car stereo wiring harness does.

One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 2009 Nissan Altima headlight bulb size you need for your low beam or high beam and save time. Also, find your other car light bulb sizes including your fog light, reverse light, turn signal, brake light and more. It’s that easy!

The Modified Life staff has taken all its Nissan Altima car radio wiring diagrams, Nissan Altima car audio wiring diagrams, Nissan Altima car stereo wiring diagrams, Nissan Altima car radio wiring schematics, Nissan Altima car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 2009 Nissan Altima part or component.

Feel free to use any Nissan Altima 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 and most of the car audio wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the Nissan Altima wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2009 Nissan Altima.


If you have any questions pertaining to the audio system in the 2009 Nissan Altima, please feel free to post it at the bottom of this page and either we’ll do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you’re looking for.

Request a Car Stereo Wiring Diagram

If you can’t find a particular car audio wire diagram on Modified Life, please feel free to post a car radio wiring diagram request at the bottom of this page and we’ll do our best to find you the diagram or schematic you need for your mobile audio installation.

Adding More Information

If you would like to help the Modified Life community by adding any missing information or adding a new car audio wire diagram to our resource, please feel free to post it at the bottom of this page.

2009 Nissan Altima Car Radio Wiring Diagram

Application Wire Color
Car Radio Battery Constant 12V+ Wire Yellow/Red
Car Radio Accessory Switched 12V+ Wire Violet/Yellow
Car Radio Ground Wire Chassis
arrow Use a Car Radio Wire Harness and Car Radio Dash Kit for an Easy Car Radio Install!
Car Radio Illumination Wire Red/Blue
Car Radio Dimmer Wire Red/Yellow
Car Radio Antenna Trigger Wire Black
Car Radio Amp Trigger Wire Black/Pink
Car Stereo Amplifier Location N/A
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.
Front Tweeter Size 1″ Tweeters
Front Tweeter Depth N/A
Front Tweeter Location N/A
arrow Use a Speaker Wire Harness for Easy Speaker Installation!
Front Speakers Size 6 1/2″ Speakers
Front Speaker Depth 4″
Front Speakers Location Doors
Front Left Speaker Wire (+) White
Front Left Speaker Wire (-) Black
Front Right Speaker Wire (+) Green/White
Front Right Speaker Wire (-) Brown
arrow Use a Speaker Wire Harness for Easy Speaker Installation!
Rear Speakers Size 6″ x 9″ Speakers
Rear Speaker Depth 4″
Rear Speakers Location N/A
Rear Left Speaker Wire (+) Green
Rear Left Speaker Wire (-) Black
Rear Right Speaker Wire (+) Gray
Rear Right Speaker Wire (-) Orange
arrow Use a Steering Wheel Control Adapter to Keep Your Steering Wheel Controls.
All Nissan Altima Stereo Wiring Diagrams
2019 Nissan Altima
2018 Nissan Altima
2017 Nissan Altima
2016 Nissan Altima
2015 Nissan Altima
2014 Nissan Altima
2013 Nissan Altima
2012 Nissan Altima
2010 Nissan Altima with HID
2009 Nissan Altima
2008 Nissan Altima
2007 Nissan Altima
2006 Nissan Altima
2005 Nissan Altima
2004 Nissan Altima
2004 Nissan Altima with HID
2003 Nissan Altima
2003 Nissan Altima with HID
2002 Nissan Altima
2001 Nissan Altima
2000 Nissan Altima
1999 Nissan Altima
1998 Nissan Altima
1997 Nissan Altima
1996 Nissan Altima
1995 Nissan Altima
1994 Nissan Altima
1993 Nissan Altima

2 Responses

  1. Lyle, your 2009 Nissan Altima grounds through the radio chassis mounting brackets. Our advice is to you have to ground your aftermarket radio to the chassis (vehicle frame) when you don’t have a factory ground wire in the stereo wire harness. Simply ground your wire to the chassis (look below).

    1. Find some bare metal on your vehicle (somewhere near your factory radio harness). Make sure this bare metal touches the chassis (frame) of the vehicle.

    Bare Metal for Chassis Grounding

    2. Connect a ring terminal to the black wire coming off your aftermarket radio harness.

    Ground Wire with Ring Terminal

    3. Use a self tapping screw to attach the black wire with ring terminal to the bare metal.

    Self Tapping Screw

    Hope this helps. Good luck with your 2009 Nissan Altima stereo installation.

Leave a Reply

Your email address will not be published. Required fields are marked *

fourteen − 8 =