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10th Gen Chassis Codes: CV1 (1.5T) / CV2 (2.0T) | Model Years: 2018, 2019, 2020, 2021, and 2022
This page provides the complete 2018–2022 Honda Accord radio wiring diagram for the 10th generation Accord (chassis code CV1 for the 1.5T and CV2 for the 2.0T). Use this guide when replacing the factory head unit or troubleshooting stereo issues in a 2018, 2019, 2020, 2021, or 2022 Honda Accord.
The 10th generation Accord features Honda Sensing integration that ties directly into the audio and display system. All trims include Android Auto and Apple CarPlay capability in the factory head unit. Replacing the factory display audio unit requires significant consideration — many owners opt to retain the factory screen and add integration modules rather than performing a full head unit swap. Sport and Touring trims include a 12-speaker Bose premium audio system with an external amplifier that must be addressed when upgrading.
2018–2022 Honda Accord Stereo Wiring Diagram
Use the wiring table below for your 2018, 2019, 2020, 2021, and 2022 Honda Accord stereo wire color codes, speaker wiring, and harness pinout.
| Wire Function | Wire Color & Location |
|---|---|
| Battery Constant Power Wire (12V+) | Red |
| Accessory Switched Power Wire (12V+) | Yellow |
| Ground Wire | Gray |
| Illumination Wire | N/A |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | Black |
| Amplifier Trigger Wire | Green |
| Factory Amplifier Location | Under the Center Console. |
| Rear View Camera Video Positive (+) | N/A |
| Rear View Camera Video Negative (–) | N/A |
| Center Dash Speaker Positive (+) | Light Green |
| Center Dash Speaker Negative (–) | White |
| Front Left Tweeter Positive (+) | Pink |
| Front Left Tweeter Negative (–) | Gray |
| Front Right Tweeter Positive (+) | Red |
| Front Right Tweeter Negative (–) | Black |
| Front Left Speaker Positive (+) | Pink |
| Front Left Speaker Negative (–) | Gray |
| Front Right Speaker Positive (+) | Red |
| Front Right Speaker Negative (–) | Black |
| Rear Left Tweeter Positive (+) | Blue |
| Rear Left Tweeter Negative (–) | White |
| Rear Right Tweeter Positive (+) | Yellow |
| Rear Right Tweeter Negative (–) | Brown |
| Rear Left Speaker Positive (+) | Blue |
| Rear Left Speaker Negative (–) | White |
| Rear Right Speaker Positive (+) | Yellow |
| Rear Right Speaker Negative (–) | Brown |
| Subwoofer Positive Wire (+) | Red |
| Subwoofer Negative Wire (–) | Black |
2023–Present Honda Accord Speaker Sizes and Locations
Use the speaker table below for your 2023, 2024, and 2025 Honda Accord speaker sizes, and locations.
| Speakers | Speaker Size & Location |
|---|---|
| Front Tweeter Speaker Size | 1″ Tweeters |
| Front Tweeter Speaker Location | A-Pillars |
| 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 |
2018–2022 Honda Accord Radio Troubleshooting
Having 2018–2022 Honda Accord radio problems or issues with your audio system? Browse common problems and the solutions to learn how to fix your issue on your Honda Accord.
| Radio Is On But No Sound |
|---|
| Diagnosis – If a single speaker experiences a short circuit, the rest of the speakers will automatically shut off to prevent damage to the whole 2018–2022 Honda Accord audio system. A quick way to detect such issues is by paying attention to the opening chime when you start your car. This sound should consistently play regardless of other factors. So, if you don’t hear it, it’s a clear indicator that there’s a problem with your 2018–2022 Honda Accord speakers. |
| Fix – Check the wires going to each speaker and make sure they are connected securely. If your speaker wires don’t have any issues, check the factory wire harness in the back of your radio for any loose wires. If the radio wire harness doesn’t have any issues, find the factory amplifier harness and check for any problems. If you haven’t found a solution, you will need to go to a car audio technician, Honda specialist, or the Honda dealer to fix your problem. |
| How to Reboot 2018–2022 Honda Accord Head Unit (6-Speed Only) |
|---|
| 1. Check your current Uptime by going to Settings > System > About > Status > Uptime on your head unit. Remember your uptime. |
| 2. Make sure the car is off then put your shifter into the reverse position. |
| 3. Turn on the car ignition but do NOT start the car. |
| 4. Take your shifter out of reverse and put it into neutral. |
| 5. The head unit will reboot automatically. Wait for the head unit to fully reboot. |
| 6. Re-check your uptime to ensure you rebooted. If the Uptime has been restarted, you successfully rebooted your head unit. |
Have 2018–2022 Honda Accord Wiring Information?
If you have verified 2018–2022 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 10th generation Accord owners.
If you have a question about your 10th gen Honda Accord stereo installation, post it below and our community will work to find an answer.