Question: Where can I find a 2011 Honda Civic Si Coupe stereo wiring diagram, and what are the 2011 Honda Civic Si Coupe radio wiring harness color codes?
If you’re planning to upgrade the radio in your 2011 Honda Civic Si Coupe or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 2011 Honda Civic Si Coupe 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 2011 Honda Civic Si Coupe.
In This Guide
2011 Honda Civic Si Coupe Car Stereo Wiring Diagram
Knowing your 2011 Honda Civic Si Coupe radio wire colors makes it easy to change your car stereo. Our 2011 Honda Civic Si Coupe radio wiring diagram shows you all the 2011 Honda Civic Si Coupe radio wire colors and what they do. Use our 2011 Honda Civic Si Coupe stereo wiring guide to install a new car radio.
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Battery Constant Power Wire (12v+) | White |
| Accessory Switched Power Wire (12v+) | Violet |
| Ground Wire | Black |
 (Simple Radio Install, Keep Steering Wheel Controls and Use Factory Amplifier) |
|
| Illumination Wire | Gray |
| Dimmer Wire | Red |
| Antenna Trigger Wire | Black |
| Amplifier Turn-On Wire | N/A |
| Amplifier Mute Wire | N/A |
| Amplifier Location | N/A |
2011 Honda Civic Si Coupe Speaker Wiring Guide
Knowing your 2011 Honda Civic Si Coupe speaker wire colors makes it super easy to replace your car stereo. Our 2011 Honda Civic Si Coupe speaker wire guide shows you how to connect car speaker wires and helps you when your car speaker wire not working. It also shows you what car speaker wire to use, which car speaker wire is positive and more. Find your 2011 Honda Civic Si Coupe speaker wire below!
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Dash Center Speaker Positive Wire (+) | N/A |
| Dash Center Speaker Negative Wire (-) | N/A |
| Front Left Tweeter Positive Wire (+) | N/A |
| Front Left Tweeter Negative Wire (-) | N/A |
| Front Right Tweeter Positive Wire (+) | N/A |
| Front Right Tweeter Negative Wire (-) | N/A |
| Front Left Speaker Positive Wire (+) | Light Green |
| Front Left Speaker Negative Wire (-) | Pink |
| Front Right Speaker Positive Wire (+) | Gray |
| Front Right Speaker Negative Wire (-) | Brown |
| Rear Left Tweeter Positive Wire (+) | N/A |
| Rear Left Tweeter Negative Wire (-) | N/A |
| Rear Right Tweeter Positive Wire (+) | N/A |
| Rear Right Tweeter Negative Wire (-) | N/A |
| Rear Left Speaker Positive Wire (+) | Yellow |
| Rear Left Speaker Negative Wire (-) | Brown |
| Rear Right Speaker Positive Wire (+) | Blue |
| Rear Right Speaker Negative Wire (-) | Orange |
| Left Subwoofer Positive Wire (+) | N/A |
| Left Subwoofer Negative Wire (-) | N/A |
| Right Subwoofer Positive Wire (+) | N/A |
| Right Subwoofer Negative Wire (-) | N/A |
2011 Honda Civic Si Coupe Speaker Sizes and Locations
Knowing your 2011 Honda Civic Si Coupe speaker sizes makes it simple to install new car speakers. Our 2011 Honda Civic Si Coupe speaker size guide shows you the exact measurements and what speaker fits in your car. It also shows you where your 2011 Honda Civic Si Coupe speakers are located. Find your 2011 Honda Civic Si Coupe speaker size and speaker location below!
| 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 | 1″ Tweeters |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Front Speaker Size | 6.5″ Speakers |
| Front Speaker Depth | 4″ Depth |
| Front Speaker Location | Front Doors |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speaker Size | 6.5″ Speakers |
| Rear Speaker Depth | 3″ Depth |
| Rear Speaker Location | Rear Deck |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Feel free to use any 2011 Honda Civic Si Coupe radio wire diagram that is listed here but keep in mind that all information here is provided as is without any warranty of any kind. Use of this 2011 Honda Civic Si Coupe stereo wiring guide is at your own risk. Always verify all radio wire, stereo wire colors and wiring information before applying it to your 2011 Honda Civic Si Coupe.