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2nd Gen Chassis Codes: ZE2 • ZE3 | Model Years: 2009, 2010, 2011, 2012, 2013, and 2014
This page provides the complete 2009–2014 Honda Insight radio wiring diagram for the 2nd generation Insight (chassis codes ZE2 and ZE3). Use this guide when replacing the factory head unit or troubleshooting audio issues in a 2009, 2010, 2011, 2012, 2013, or 2014 Honda Insight.
The 2nd generation Insight returned in 2009 as a five-door hatchback with seating for five passengers, a significant departure from the two-seat ZE1. It used Honda’s updated IMA hybrid system and was designed to compete directly with the Toyota Prius at a lower price point. The factory audio system was upgraded compared to the 1st gen, featuring front door speakers and rear door speakers, with dashboard tweeters added on EX trim. The 2nd gen Insight uses Honda’s updated radio connector compatible with the Metra 70-1729 adapter, confirmed by InsightCentral forum owners and parts listings. The LX and EX trims use different audio configurations, with the EX featuring additional dashboard tweeter locations.
🔗 In This Guide
2009–2014 Honda Insight Stereo Wiring Diagram
Use the wiring table below for your 2009, 2010, 2011, 2012, 2013, and 2014 Honda Insight stereo wire color codes, speaker wiring, and harness pinout.
| Wire Function | Wire Color & Location |
|---|---|
| Battery Constant Power Wire (12V+) | Pink |
| Accessory Switched Power Wire (12V+) | Violet |
| Ground Wire | Black |
 (Simple Radio Install, Keep Steering Wheel Controls and Use Factory Amplifier) |
|
| Illumination Wire | Gray |
| Dimmer Wire | White |
| Antenna Trigger Wire | Black |
| 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 (+) | Light Blue |
| Front Left Speaker Negative (–) | Gray |
| Front Right Speaker Positive (+) | Blue |
| Front Right Speaker Negative (–) | 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 (+) | Gray |
| Rear Left Speaker Negative (–) | Brown |
| Rear Right Speaker Positive (+) | Blue |
| Rear Right Speaker Negative (–) | Orange |
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (–) | N/A |
2009–2014 Honda Insight Speaker Sizes and Locations
Use the speaker table below for your 2009, 2010, 2011, 2012, 2013, and 2014 Honda Insight speaker sizes and locations.
| Speakers | Speaker Size & Location |
|---|---|
| Front Tweeter Speaker Size | 1″ Tweeters |
| Front Tweeter Speaker Location | Dash Corners (EX Trim) |
| 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 | 8″ Subwoofer |
| Subwoofer Speaker Location | Rear Deck (Touring Trim) |
Frequently Asked Questions
What wiring harness adapter fits a 2009–2014 Honda Insight?
The 2nd generation Insight uses Honda’s updated radio connector compatible with the Metra 70-1729 Wire Harness Adapter. The 70-1729 covers the standard (LX) audio configuration. Verify your trim level before purchasing — EX models with the additional dashboard Tweeter configuration may have a secondary connector that needs to be addressed separately. The Metra 40-HD11 Antenna Adapter is also recommended for the 2nd gen Insight’s antenna connection.
Does the 2009–2014 Honda Insight EX have dashboard tweeters?
Yes. The EX trim of the 2nd generation Insight includes small dashboard Tweeters mounted near the windshield corners. These tweeters receive a split signal from the front speaker channels through an in-line passive crossover. The LX base trim does not include the dashboard Tweeters — it uses only the four door speakers. When replacing the head unit in an EX Insight, the tweeter circuit continues to function passively through the factory door speaker wiring and requires no special treatment beyond the standard harness adapter connection.
Does the 2009–2014 Honda Insight have a factory amplifier?
No standard or premium factory Amplifier was included in the 2nd generation Insight on the LX or EX trim levels sold in North America. All door speakers were driven passively from the factory head unit. This simplifies the aftermarket head unit replacement process considerably — no amplifier bypass harness is needed. Connect the Metra 70-1729 Wire Harness Adapter and the new head unit drives all four door speakers directly.
What size are the factory speakers in a 2009–2014 Honda Insight?
The 2nd generation Insight uses 6 1/2″ Speakers in all four door panels — both front and rear doors. This is confirmed by community reports and aftermarket speaker packages available for the 2010–2014 Insight. The front door speaker depth clearance is somewhat limited, so verify the mounting depth of any aftermarket 6.5-inch speaker before purchasing. Standard-depth 6 1/2″ Speakers fit the rear doors without issue, and the EX trim’s small dashboard tweeters are separate from the door speaker circuit and do not require replacement when upgrading the door speakers.
How do I improve audio quality in a 2009–2014 Honda Insight without replacing the head unit?
The most impactful upgrade for the 2nd gen Insight without replacing the factory head unit is replacing all four 6 1/2″ Door Speakers with higher-quality aftermarket units. Adding sound deadening material to the inside of the door panels further improves speaker performance by reducing panel resonance, which is noticeable on the Insight’s lightweight body construction. A Compact Powered Subwoofer installed in the rear cargo area using high-level inputs from the rear door speaker wires adds low-frequency response without requiring a head unit swap. The Insight’s relatively quiet hybrid powertrain makes audio improvements particularly noticeable compared to conventional gasoline vehicles.
Add Wiring Information
If you have verified 2009–2014 Honda Insight 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 Insight owners. If you have a question about your 2nd gen Honda Insight stereo installation, post it below and our community will work to find an answer.
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