Question: Where can I find a 2005 Honda Civic radio wiring diagram? What are the 2005 Honda Civic radio wiring harness color codes?
If you’re planning to upgrade the radio in your 2005 Honda Civic or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 2005 Honda Civic 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 2005 Honda Civic.
In This Guide
2005 Honda Civic Car Stereo Wiring Diagram
This 2005 Honda Civic radio wiring chart shows you all the 2005 Honda Civic 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 |
|---|---|
| Battery Constant Power Wire (12v+) | Blue/White |
| Accessory Switched Power Wire (12v+) | Yellow/Red |
| Ground Wire | Black |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | Red/Black |
| Dimmer Wire | Red |
| Antenna Trigger Wire | N/A |
| Amplifier Turn-On Wire | N/A |
| Amplifier Mute Wire | N/A |
| Amplifier Location | N/A |
2005 Honda Civic Speaker Wiring Guide
This 2005 Honda Civic speaker wiring guide provides all the speaker wire colors and speaker locations you need for an upgrade or replacement. Whether you are installing new speakers or troubleshooting your factory setup, this 2005 Honda Civic chart makes it easy to identify each wire and where it connects. If you don’t see the car speaker wiring info you need, feel free to ask your question at the bottom of the page — we are here to help!
| 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 (+) | Blue/Green |
| Front Left Speaker Negative Wire (-) | Gray/Black |
| Front Right Speaker Positive Wire (+) | Red/Green |
| Front Right Speaker Negative Wire (-) | Brown/Black |
| 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 (+) | Blue/Yellow |
| Rear Left Speaker Negative Wire (-) | Gray/White |
| Rear Right Speaker Positive Wire (+) | Red/Yellow |
| Rear Right Speaker Negative Wire (-) | Brown/White |
| Left Subwoofer Positive Wire (+) | N/A |
| Left Subwoofer Negative Wire (-) | N/A |
| Right Subwoofer Positive Wire (+) | N/A |
| Right Subwoofer Negative Wire (-) | N/A |
2005 Honda Civic Speaker Sizes and Locations
This 2005 Honda Civic speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 2005 Honda Civic.
| 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 | 3.5″ Depth |
| Front Speaker Location | Front Doors |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speaker Size (Coupe) | 6″ x 9″ Speakers |
| Rear Speaker Size (Sedan) | 6.5″ Speakers |
| Rear Speaker Depth | 6″ Depth |
| 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 2005 Honda Civic 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
Do you want to contribute 2005 Honda Civic stereo wire diagram information to benefit the Modified Life community? Feel free to share your insights by posting at the bottom of this page. We will gather any additional information presented below by our community, verify it, and incorporate it into the car radio wiring guide above for easy reference. We are consistently adding new information to improve and update this car stereo wiring guide as it becomes available. We appreciate your contribution in advance!
7 thoughts on “2005 Honda Civic Radio Wiring Guide”
What is the difference between the radio constant wire and the radio switched ignition wire?
Robert,
The radio constant 12V+ wire (White/Blue) is a power wire that comes straight from your battery. It is always powered even when the car is off.
The radio switched 12V+ wire (Yellow/Red) is a power wire that comes from your ignition switch. It is only powered when your key is in the ignition and the car is running.
The reason the constant wire is always powered is to make sure your radio settings and radio station pre-sets are not erased when your car is not running. The switched wire is what actually powers the radio when your key is in the ignition and your car is running.
Hope this helps. Good Luck.
Dear all,
I had a electrical problem with my car last night and my Stereo doesn’t work. I lost my Code card a two years ago. Could you help me to find the Stereo Code?
Honda Civic – Model 2005.
Thanks in advance.
Daniela Santos, if you don’t have the radio security code, you would have to obtain it from the Honda dealer. Hope this helps.
Thanks! I’ll contact the Honda dealer here in Brazil.
I have a 2005 Honda Civic DX with the following Stereo: p/n:39101 – s5a – a210 – m1
The diagram posted on this site is different from the one in my car. However, I found the information below from the Honda website, and it matches my car. I don’t have the AT Speakers listed here, but they were included in the guide from Honda.
This is the diagram:
+12v Constant: white/red
Switch: yellow/red
Ground: black
Illumination: red/black
Speakers
Left Front +: green/black
Left Front -: light green
Right Front +: green/yellow
Right Front -: gray/red
Left Rear +: blue/white
Left Rear -: blue/black
Right Rear +: pink
Right Rear -: blue/yellow
AT Speakers
Left Front Mid +: green/black (green/yellow for hybrid and sedan)
Left Front Mid -: light green (gray/red for hybrid and sedan)
Left Front Tweeter +: green/black (red in sedan)
Left Front Tweeter -: light green (blue in sedan)
Right Front Mid +: green/yellow (green/black for hybrid and sedan)
Right Front Mid -: gray/red (light green for hybrid and sedan)
Right Front Tweeter +: green/yellow (red in sedan)
Right Front Tweeter -: gray/red (blue in sedan)
Paul, thanks for the car radio wiring information contribution!