1991 Infiniti G20 Car Stereo Wiring Schematic

Whether your an expert Infiniti G20 mobile electronics installer, Infiniti G20 fanatic, or a novice Infiniti G20 enthusiast with a 1991 Infiniti G20, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1991 Infiniti G20 vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.

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 1991 Infiniti G20.

The Modified Life staff has taken all its Infiniti G20 car radio wiring diagrams, Infiniti G20 car audio wiring diagrams, Infiniti G20 car stereo wiring diagrams, Infiniti G20 car radio wiring schematics, Infiniti G20 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 1991 Infiniti G20 part or component.

Feel free to use any Infiniti G20 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 Infiniti G20 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1991 Infiniti G20.


If you have any questions pertaining to the audio system in the 1991 Infiniti G20, 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.

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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.

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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.

1991 Infiniti G20 Car Stereo Wiring Schematic

Car Radio Battery Constant 12v+ Wire: Red/Black
Car Radio Accessory Switched 12v+ Wire: Blue
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Red/Blue
Car Stereo Dimmer Wire: Red/Yellow
Car Stereo Antenna Trigger Wire: Black/Red
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″ x 6″ Speakers
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Blue/White
Left Front Speaker Negative Wire (-): Black/Yellow
Right Front Speaker Positive Wire (+): Brown
Right Front Speaker Negative Wire (-): Brown/White
Car Audio Rear Speakers Size: 6 1/2″ Speakers
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Red
Left Rear Speaker Negative Wire (-): Dark Green
Right Rear Speaker Positive Wire (+): Light Brown/Green
Right Rear Speaker Negative Wire (-): Pink

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  • Reply adrian February 12, 2009 at 7:52 pm

    hey i was wondering how to remove the rear speaker in my 1991 g20.. do the speaker covers pop off or do you have to pull that entire rear panel off? thanks for your help!!

  • Reply Dan February 25, 2009 at 6:34 pm

    You have to pull the rear seat and then the rear panel to get to the rear speakers.

  • Reply ModifiedLife March 5, 2009 at 3:01 am

    Dan, thanks for the car stereo speaker removal information contribution!

  • Reply speaker cover removal July 22, 2009 at 10:37 pm

    Can you explain to me how to remove the covers off the front and back speakers so i can change the speaker? Getting to the point where im gonna start smashing things!

  • Reply ModifiedLife July 29, 2009 at 2:38 am

    Most door panel removals can be done with a Phillips screwdriver and by simply pulling the door panel off by hand. Just look for screws at the edge of the door panel, near the door handle or inside the door pull. Once you remove all the screws, you should be able to pull the door panel off with ease. You can get to the rear speakers on most late model cars one of two ways. You can remove the rear speaker grills from some vehicles simply by removing screws that hold down the speaker grills to the rear deck lid. These screws are usually located on the bottom side of the rear deck (accessible through the trunk). The second way would require you to remove the deck lid from the interior of the car. On some cars removal of the rear seats is required to get to the rear deck lid. Hope this helps. Good luck.

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