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2nd Gen Chassis Codes: RD4 • RD5 • RD6 • RD7 • RD9 | Model Years: 2002, 2003, 2004, 2005, and 2006
This page provides the complete 2002–2006 Honda CR-V radio wiring diagram for the 2nd generation CR-V (chassis codes RD4, RD5, RD6, RD7, and RD9). Use this guide when installing an aftermarket head unit or diagnosing factory stereo issues in a 2002, 2003, 2004, 2005, or 2006 Honda CR-V.
The 2nd generation CR-V moved to a new platform and featured a significantly more refined interior. The factory audio system included front door speakers and rear door speakers on EX trims. Honda’s updated radio connector was used throughout this generation. A harness adapter is recommended when replacing the factory head unit to preserve the factory connector and avoid cutting the factory wiring.
🔗 In This Guide
2002–2006 Honda CR-V Stereo Wiring Diagram
Use the wiring table below for your 2002, 2003, 2004, 2005, and 2006 Honda CR-V stereo wire color codes, speaker wiring, and harness pinout.
| Wire Function | Wire Color & Location |
|---|---|
| Battery Constant Power Wire (12V+) | White/Red |
| Accessory Switched Power Wire (12V+) | Yellow/Red |
| Ground Wire | Black |
| Illumination Wire | Red/Black |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | N/A |
| 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 |
2002–2006 Honda CR-V Speaker Sizes and Locations
Use the speaker table below for your 2002, 2003, 2004, 2005, and 2006 Honda CR-V 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 Doors |
| Subwoofer Speaker Size | N/A |
| Subwoofer Speaker Location | N/A |
Add Wiring Information
If you have verified 2002–2006 Honda CR-V 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 2nd generation CR-V owners. If you have a question about your 2nd gen Honda CR-V stereo installation, post it below and our community will work to find an answer.
Frequently Asked Questions
What harness adapter fits a 2002–2006 Honda CR-V?
The 2nd generation CR-V uses an updated Honda radio connector compared to the 1st gen. Metra 70-1729 Wire Harness Adapter is the recommended adapter for 2002–2006 CR-V models. Always confirm the connector type on your specific vehicle year as early and late model years in this range occasionally have minor connector variations.
Does the 2002–2006 Honda CR-V EX have a different audio system than the LX?
Yes. The EX trim in the 2nd generation CR-V includes additional speaker locations and a more capable factory head unit compared to the LX. The EX also adds a rear-seat audio system on some configurations. However, neither trim includes a factory Amplifier — all speakers are driven passively from the head unit on both trim levels.
What speaker size does the 2002–2006 Honda CR-V use in the front doors?
The 2nd generation CR-V uses 6 1/2″ Speakers in the front door panels. Rear door speakers are also 6.5 inches on most configurations. Direct-fit 6 1/2″ Speakers install without modification. The door panel depth in this generation is sufficient for most standard-mount aftermarket speakers.
Can I add a subwoofer to a 2002–2006 Honda CR-V without replacing the head unit?
Yes. A Compact Powered Subwoofer can be added to a 2nd gen CR-V by tapping the factory speaker wires for a high-level (speaker-level) input signal. Many aftermarket powered subwoofers include built-in speaker-level inputs for exactly this application. Place the subwoofer in the cargo area for the best balance of sound quality and usable cargo space.
Does the 2002–2006 Honda CR-V have steering wheel audio controls?
Steering wheel audio controls were not included on the 2nd generation CR-V. The steering wheel includes only the horn on this generation. No SWC retention interface is needed when replacing the head unit — the steering wheel buttons will have no audio functions to retain.
Add Wiring Information
If you have verified 2002–2006 Honda CR-V 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 2nd generation CR-V owners. If you have a question about your 2nd gen Honda CR-V stereo installation, post it below and our community will work to find an answer.
📻 Jump to Another Generation
1st Gen (1996–2001)
2nd Gen (2002–2006)
3rd Gen (2007–2011)
4th Gen (2012–2016)
5th Gen (2017–2022)
6th Gen (2023–2026)