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7th Gen Chassis Codes: CM4 • CM5 • CM6 • CM7 • CM8 | Model Years: 2003, 2004, 2005, 2006, and 2007
This page provides the complete 2003–2007 Honda Accord radio wiring diagram for the 7th generation Accord (chassis codes CM4, CM5, CM6 for the sedan and CM7, CM8 for the coupe). Use this guide when installing an aftermarket head unit or troubleshooting your factory audio in a 2003, 2004, 2005, 2006, or 2007 Honda Accord.
The 7th generation Accord is one of the most popular platforms for aftermarket car audio upgrades. EX-L trims with the Navigation package use a complex factory head unit with a separate navigation computer, requiring a specific bypass harness. Non-navigation EX and lower trims use a standard single-DIN or double-DIN head unit that is more straightforward to replace. The V6 coupe and sedan may have a factory subwoofer in the trunk on higher trims.
2003–2007 Honda Accord Stereo Wiring Diagram
Use the wiring table below for your 2003, 2004, 2005, 2006, and 2007 Honda Accord stereo wire color codes, speaker wiring, and harness pinout.
| Wire Function | Wire Color & Location |
|---|---|
| Battery Constant Power Wire (12V+) | White/Green |
| Accessory Switched Power Wire (12V+) | Yellow/Red |
| Ground Wire | Black |
| Illumination Wire | N/A |
| Dimmer Wire | Red/Black |
| Antenna Trigger Wire | Red |
| Amplifier Trigger Wire | N/A |
| Factory Amplifier Location | N/A |
| Rear View Camera Video Positive (+) | N/A |
| Rear View Camera Video Negative (–) | N/A |
| Dash Center Speaker Positive Wire (+) | N/A |
| Dash Center Speaker Negative Wire (–) | N/A |
| Front Left Tweeter Positive (+) | N/A |
| Front Left Tweeter Negative (–) | N/A |
| Front Right Tweeter Positive (+) | N/A |
| Front Right Tweeter Negative (–) | N/A |
| Front Left Speaker Positive (+) | Green/Black |
| Front Left Speaker Negative (–) | Light Green |
| Front Right Speaker Positive (+) | Green/Yellow |
| Front Right Speaker Negative (–) | Gray/Red |
| Rear Left Tweeter Positive (+) | N/A |
| Rear Left Tweeter Negative (–) | N/A |
| Rear Right Tweeter Positive (+) | N/A |
| Rear Right Tweeter Negative (–) | N/A |
| Rear Left Speaker Positive (+) | Blue/White |
| Rear Left Speaker Negative (–) | Blue/Black |
| Rear Right Speaker Positive (+) | Pink |
| Rear Right Speaker Negative (–) | Blue/Yellow |
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (–) | N/A |
2003–2007 Honda Accord Speaker Sizes and Locations
Use the speaker table below for your 2003, 2004, 2005, 2006, and 2007 Honda Accord speaker sizes and locations.
| Speakers | Speaker Size & Location |
|---|---|
| Front Tweeter Speaker Size | N/A |
| Front Tweeter Speaker Location | N/A |
| Front Speaker Size | 6 1/2″ Speakers |
| Front Speaker Location | Front Doors |
| Rear Tweeter Speaker Size | N/A |
| Rear Tweeter Speaker Location | N/A |
| Rear Speaker Size | 6 1/2″ Speakers |
| Rear Speaker Location | Rear Deck |
| Subwoofer Speaker Size | N/A |
| Subwoofer Speaker Location | N/A |
Have 2003–2007 Honda Accord Wiring Information?
If you have verified 2003–2007 Honda Accord radio wiring data — wire colors, pin locations, harness adapter tips, or speaker sizes — please share it in the comments below. Community-submitted data is reviewed and added to the table above to help other 7th generation Accord owners.
If you have a question about your 7th gen Honda Accord stereo installation, post it below and our community will work to find an answer.
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