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5th Gen Chassis Codes: YK8 | Model Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, and 2026
This page provides the complete 2018–present Honda Odyssey radio wiring diagram for the 5th generation Odyssey (chassis code YK8). Use this guide when replacing the factory head unit or troubleshooting audio in a 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 or 2026 Honda Odyssey.
The 5th generation Odyssey features Honda’s most advanced infotainment and rear entertainment integration to date. The Elite trim includes a 590-watt premium audio system with 11 speakers driven by an external amplifier, plus an upgraded rear entertainment system with two 10-inch screens and CabinWatch and CabinTalk cabin communication features. The factory Display Audio system supports Apple CarPlay and Android Auto on EX and above trims. The deep integration of entertainment, communication, and vehicle systems in this generation makes audio system modification more complex than any previous Odyssey generation.
🔗 In This Guide
2018–Present Honda Odyssey Stereo Wiring Diagram
Use the wiring table below for your 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 and 2026 Honda Odyssey stereo wire color codes, speaker wiring, and harness pinout.
| Wire Function | Wire Color & Location |
|---|---|
| Battery Constant Power Wire (12V+) | Tan (Pin 6 in A-Connector) |
| Accessory Switched Power Wire (12V+) | Purple |
| Ground Wire | Ground |
 (Simple Radio Install, Keep Steering Wheel Controls and Use Factory Amplifier) |
|
| Illumination Wire (+) | Gray (Pin 2 in A-Connector) |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | Black (Pin 4 in E-Connector) |
| Amplifier Trigger Wire | N/A |
| Factory Amplifier Location | Rear Cargo Area |
| 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 (+) | Blue (Pin 3 in B-Connector) |
| Front Left Tweeter Negative (–) | Pink (Pin 9 in B-Connector) |
| Front Right Tweeter Positive (+) | Gray (Pin 10 in B-Connector) |
| Front Right Tweeter Negative (–) | Brown (Pin 4 in B-Connector) |
| Front Left Speaker Positive (+) | Blue (Pin 3 in B-Connector) |
| Front Left Speaker Negative (–) | Pink (Pin 9 in B-Connector) |
| Front Right Speaker Positive (+) | Gray (Pin 10 in B-Connector) |
| Front Right Speaker Negative (–) | Brown (Pin 4 in B-Connector) |
| 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 (+) | Gray (Pin 8 in B-Connector) |
| Rear Left Speaker Negative (–) | Brown (Pin 2 in B-Connector) |
| Rear Right Speaker Positive (+) | Pink (Pin 7 in B-Connector) |
| Rear Right Speaker Negative (–) | Blue (Pin 1 in B-Connector) |
| Subwoofer Positive Wire (+) | Red (Pin 11 in B-Connector) |
| Subwoofer Negative Wire (–) | White (Pin 5 in B-Connector) |
2018–Present Honda Odyssey Speaker Sizes and Locations
Use the speaker table below for your 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 and 2026 Honda Odyssey speaker sizes and locations.
| Speakers | Speaker Size & Location |
|---|---|
| Front Tweeter Speaker Size | 1″ Tweeters |
| Front Tweeter Speaker Location | Front Pillars |
| Front Speaker Size | 6 1/2″ Speakers |
| Front Speaker Location | Front Doors |
| Rear Tweeter Speaker Size | 3 1/2″ Speakers |
| Rear Tweeter Speaker Location | Rear D-Pillars |
| Rear Speaker Size | 6 1/2″ Speakers |
| Rear Speaker Location | Rear Sliding Doors |
| Subwoofer Speaker Size | N/A |
| Subwoofer Speaker Location | Rear Cargo Panel |
Frequently Asked Questions
Does the 2018–present Honda Odyssey support Apple CarPlay and Android Auto?
Apple CarPlay and Android Auto are included on EX and above trims of the 5th generation Odyssey. The LX trim does not include either feature. 2020 and later model years added wireless CarPlay compatibility on Touring and Elite trims. The factory Display Audio system supports both features natively without requiring any aftermarket modification on equipped trims.
Where is the factory amplifier located in a 2018–present Honda Odyssey Elite?
The Elite trim of the 5th generation Odyssey includes a factory amplifier for its 11-speaker, 590-watt premium audio system. The amplifier is located in the rear cargo area behind the interior trim panels on the driver’s side. EX-L and lower trims do not include a factory Amplifier and use a passive speaker system driven directly from the Display Audio head unit. Confirm your trim before planning any head unit replacement, as the amplified and non-amplified configurations require different harness solutions.
What are the CabinWatch and CabinTalk features in the 2018–present Honda Odyssey, and how do they affect audio wiring?
CabinWatch is a camera system that displays the rear passenger cabin on the front touchscreen, allowing the driver to monitor passengers without turning around. CabinTalk allows the driver to broadcast their voice through the rear cabin speakers. Both features are integrated into the factory Display Audio system and use dedicated wiring circuits. Replacing the factory head unit without preserving these circuits will disable both features. A compatible integration harness or retaining the factory display are the recommended approaches if preserving CabinWatch and CabinTalk functionality is important.
What size are the front door speakers in a 2018–2026 Honda Odyssey?
The 5th generation Odyssey uses 6 1/2″ Speakers in the front door panels across all trims. Elite trims with the premium audio system add A-pillar tweeters to the front stage configuration. The rear passenger cabin includes B-pillar speakers for second-row coverage and rear side panel speakers for third-row coverage. Elite trims add a Subwoofer in the cargo area as part of the 11-speaker premium system. Confirm your trim’s full speaker count before planning any upgrade, as the standard and Elite configurations differ significantly.
How do I add aftermarket audio to a 2018–present Honda Odyssey without replacing the head unit?
The most practical audio upgrade path for the 5th gen Odyssey without replacing the head unit is to add an external Amplifier and Subwoofer using the factory speaker outputs as a signal source via high-level inputs. Connect the aftermarket amplifier to the front or rear factory speaker wires using a high-level input connection, configure the amp’s internal crossover and gain settings to complement the factory speaker output, and mount a subwoofer in the rear cargo area. This approach avoids disrupting the Display Audio system’s integration with CabinWatch, CabinTalk, and Honda Sensing.
Add Wiring Information
If you have verified 2018–2026 Honda Odyssey 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 5th generation Odyssey owners. If you have a question about your 5th gen Honda Odyssey stereo installation, post it below and our community will work to find an answer.
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