Question: Where can I find a 1991 Pontiac Sunbird radio wiring diagram? What are the 1991 Pontiac Sunbird radio wiring harness color codes?
If you’re planning to upgrade the radio in your 1991 Pontiac Sunbird or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 1991 Pontiac Sunbird radio wiring diagram shows all the radio wire harness colors, speaker wire colors, and speaker sizes. Use this head unit pinout guide to help with your car stereo installation or to troubleshoot radio wiring issues in your 1991 Pontiac Sunbird.
In This Guide
1991 Pontiac Sunbird Car Stereo Wiring Diagram
This 1991 Pontiac Sunbird radio wiring chart shows you all the 1991 Pontiac Sunbird stereo wire color codes and their radio wire functions. This easy-to-follow guide can help you install a new car stereo or figure out problems with your stereo wiring harness and radio setup. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Car Radio Battery Wire (Constant 12v+) | Orange |
| Car Radio Accessory Wire (Switched 12v+) | Yellow |
| Ground Wire | Black |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | Gray |
| Dimmer Wire | Brown |
| Antenna Trigger Wire | Pink |
| Car Radio Amp Trigger Wire | N/A |
| Amplifier Location | N/A |
1991 Pontiac Sunbird Speaker Wiring Guide
This 1991 Pontiac Sunbird speaker wiring chart shows you every speaker wire color and the speaker wire polarity. Use this 1991 Pontiac Sunbird chart makes it easy to identify each wire and where it connects. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Front Left Speaker Positive Wire (+) | Tan |
| Front Left Speaker Negative Wire (-) | Gray |
| Front Right Speaker Positive Wire (+) | Light Green |
| Front Right Speaker Negative Wire (-) | Dark Green |
| Rear Left Speaker Positive Wire (+) | Brown |
| Rear Left Speaker Negative Wire (-) | Yellow |
| Rear Right Speaker Positive Wire (+) | Dark Blue |
| Rear Right Speaker Negative Wire (-) | Light Blue |
| Subwoofer Left Positive Wire (+) | N/A |
| Subwoofer Left Negative Wire (-) | N/A |
| Subwoofer Right Positive Wire (+) | N/A |
| Subwoofer Right Negative Wire (-) | N/A |
| Use a Steering Wheel Control Adapter to Keep Your Steering Wheel Controls. | |
1991 Pontiac Sunbird Speaker Sizes and Locations
This 1991 Pontiac Sunbird speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 1991 Pontiac Sunbird.
| Application | Speaker Size/Location |
|---|---|
| Dash Center Speaker Size | N/A |
| Dash Center Speaker Depth | N/A |
| Dash Center Speaker Location | N/A |
| Front Tweeter Size | N/A |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Front Speaker Size | 3 1/2″ Speakers |
| Front Speaker Depth | N/A |
| Front Speaker Location | Dash |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speaker Size | 6″ x 9″ Speakers |
| Rear Speaker Depth | N/A |
| Rear Speaker Location | Rear Deck |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Questions and Answers
If you have any questions about your 1991 Pontiac Sunbird radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!
Contribute
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How do I remove the radio in my 1991 sunbird?