Whether your an expert Pontiac electronics installer or a novice Pontiac enthusiast with a 1991 Pontiac Grand Am, a Pontiac car stereo wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car stereo, car radio, car speakers, car subwoofer, car amplifier, mobile amp, mobile navigation or any car audio electronics is identifying the correct color audio wires for a 1991 Pontiac Grand Am.
The Modified Life staff has taken all its Pontiac car radio wiring diagrams, Pontiac car audio wiring diagrams, Pontiac car stereo wiring diagrams, Pontiac car radio wiring schematics, Pontiac car wiring diagrams and cataloged them online. Feel free to use any Pontiac 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 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1991 Pontiac Grand Am.
If you can’t find your car audio wire diagram, car stereo wire diagram or car radio wire diagram on Modified Life, please feel free to post a car wiring diagram request (Car Stereo Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile audio installation.
If you would like to help the Modified Life community by adding a car audio wire diagram, car stereo wire diagram or car radio wire diagram to our resource, please feel free to post any additional car audio information about the 1991 Pontiac Grand Am on this page.
1991 Pontiac Grand Am Car Radio Stereo Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue