1990 Buick LeSabre Car Stereo Installation Information

Whether your an expert Buick LeSabre mobile electronics installer, Buick LeSabre fanatic, or a novice Buick LeSabre enthusiast with a 1990 Buick LeSabre, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1990 Buick LeSabre 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 1990 Buick LeSabre.

The Modified Life staff has taken all its Buick LeSabre car radio wiring diagrams, Buick LeSabre car audio wiring diagrams, Buick LeSabre car stereo wiring diagrams, Buick LeSabre car radio wiring schematics, Buick LeSabre 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 1990 Buick LeSabre part or component.

Feel free to use any Buick LeSabre 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 Buick LeSabre wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1990 Buick LeSabre.


If you have any questions pertaining to the audio system in the 1990 Buick LeSabre, 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.

1990 Buick LeSabre Car Stereo Installation Information

Car Radio Constant 12V+ Wire: Orange
Car Radio Ignition Switched 12V+ Wire: Yellow
Car Radio Ground Wire: Black
Stereo Radio Illumination Wire: Gray
Stereo Radio Dimmer Wire: Brown
Stereo Radio Antenna Trigger Wire: N/A
Stereo Radio Amplifier Trigger Wire: N/A
Front Speakers Size: 4″ x 6″ Speakers
Front Speakers Location: Doors
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Rear Speakers Size: 6″ x 9″ Speakers
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

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  • Reply Belinda nguyen October 16, 2012 at 11:38 pm

    I cant locate the wire for my memory. every time I turn my car off I loose the memory. I have to reset the stereo every time. I have a 1990 buick lesabre. please tell me what color I need to hook up to wire on my stereo to keep memory?

  • Reply ModifiedLife October 25, 2012 at 9:24 pm

    Belinda, the memory wire is the orange wire located at the radio wiring harness behind the radio. Hope this helps. Good luck with your 1990 Buick LeSabre stereo installation.

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