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2003 Honda Accord Car Radio Wiring Diagram


Question: Where can I find a 2003 Honda Accord radio wiring diagram? What are the 2003 Honda Accord radio wiring harness colors?

If you’re looking to change the radio in your 2003 Honda Accord or troubleshoot why your car radio stopped working, we’re here to help!

Our comprehensive 2003 Honda Accord radio wiring diagram shows you all the radio wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2003 Honda Accord stereo wiring guide to help you with your car radio and installation needs.

2003 Honda Accord Radio Wiring Diagram

This 2003 Honda Accord radio wiring chart shows you all the 2003 Honda Accord radio wire colors and their functions. Utilize this guide to help you with a car radio install or help with a car radio troubleshoot. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.

Application Radio Wire Color
Car Radio Battery Wire (Constant Power 12v+) White/Green
Car Radio Accessory Wire (Switched Power 12v+) Yellow/Red
Car Radio Ground Wire Black
arrow Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install!
Car Radio Illumination Wire N/A
Car Stereo Dimmer Wire Red/Black
Car Radio Antenna Trigger Wire Red
Car Radio Amp Turn-On Trigger Wire N/A
Car Radio Amp Mute Wire N/A
Car Radio Amplifier Location N/A
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.

2003 Honda Accord Speaker Wiring Guide

This 2003 Honda Accord speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2003 Honda Accord speaker wiring guide to help you with a speaker replacement or speaker upgrade. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.

Application Speaker Wire Color
Front Center Speaker Positive Wire (+) N/A
Front Center Speaker Negative Wire (-) N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Left Tweeter Positive Wire (+) N/A
Front Left Tweeter Negative Wire (-) N/A
Front Right Tweeter Positive Wire (+) N/A
Front Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Left Speaker Positive Wire (+) Green/Black
Front Left Speaker Negative Wire (-) Light Green
Front Right Speaker Positive Wire (+) Green/Yellow
Front Right Speaker Negative Wire (-) Gray/Red
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Left Tweeter Positive Wire (+) N/A
Rear Left Tweeter Negative Wire (-) N/A
Rear Right Tweeter Positive Wire (+) N/A
Rear Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Rear Left Speaker Positive Wire (+) Blue/White
Rear Left Speaker Negative Wire (-) Blue/Black
Rear Right Speaker Positive Wire (+) Pink
Rear Right Speaker Negative Wire (-) Blue/Yellow
arrow Upgrade your Subwoofer for deeper lows!
Left Subwoofer Positive Wire (+) N/A
Left Subwoofer Negative Wire (-) N/A
Right Subwoofer Positive Wire (+) N/A
Right Subwoofer Negative Wire (-) N/A

2003 Honda Accord Speaker Sizes and Location

This 2003 Honda Accord speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2003 Honda Accord.

Application Speaker Size and Location
Front Center Speaker Size N/A
Front Center Speaker Depth N/A
Front Center Speaker Location N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Tweeter Size N/A
Front Tweeter Depth N/A
Front Tweeter Location N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Speaker Size 6.5″ Speakers
Front Speaker Depth 4″ Depth
Front Speaker Location Front Doors
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Tweeter Size N/A
Rear Tweeter Depth N/A
Rear Tweeter Location N/A
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Speaker Size 6″ x 9″ Speakers
Rear Speaker Depth 5″ Depth
Rear Speaker Location Rear Deck
arrow Upgrade your Subwoofer for deeper lows!
Car Subwoofer Speaker Size N/A
Car Subwoofer Speaker Depth N/A
Car Subwoofer Speaker Location N/A

Questions and Answers

If you have any questions about your 2003 Honda Accord radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!

Contribute

Do you want to contribute 2003 Honda Accord stereo wire diagram information to benefit the Modified Life community? Feel free to share your insights by posting at the bottom of this page. We will gather any additional information presented below by our community, verify it, and incorporate it into the car radio wiring guide above for easy reference. We are consistently adding new information to improve and update this car stereo wiring guide as it becomes available. We appreciate your contribution in advance!

12 thoughts on “2003 Honda Accord Car Radio Wiring Diagram”

  1. Josh, it sounds like the internal amplifier in your radio may be faulty. Our advice is to replace your stock radio with an aftermarket radio. Hope this helps. Good luck.

  2. Hi guys, I have a 03 accord with navigation. I was wondering if anyone happen to know which wire from the navigation is going to front left and right speakers for route guidance voice. thanks

  3. John, most late model cars use the front door speakers to power the tweeters. We have found that the flip over wire snaps sometimes don’t offer a solid connection. We suggest you splice, twist, solder and electrical tape your connections. Hope this helps. Good luck with your radio installation.

  4. I will be doing a aftermarket radio install in my 07 Honda accord lx (sony mex-bt2700) next weekend. I have not taken any of the dash apart yet or seen what the wiring harness looks like yet. I am aware not to unplug the harness from the original stock stereo and splicing will be involved. My question is your wiring diagram does not show instructions for the tweeters. will these wires be integrated into the front speaker wires or will there be seperate wires for the tweeters that are not listed. also when connecting wires can I use the plastic flip over wire snaps? (these are the blue plastic square shaped pieces of plastic with small pieces of connecting metal inside. You place two wires side by side inside of them and when you fold the plastic top cover over them and snap it tight it makes a connection between the two wires.) Are these acceptable to make a good enough connection? Or should I splice twist and electrical tape them. I am not running an amp or sub if this makes any difference…………..Thanks for any helpful info into this matter….John

  5. I have a 2003 Honda Accord EXL-V6, w/o navigation and a cassette player. I would like XM satalitte radio capabilities, but don’t want an aftermarket stereo. I found a 2006 Accord stereo with XM, available at an auto scrap yard for a good price. Are the wire harnesses different on these vehicles? I know Honda didn’t offer XM until 2004. Any insight is appreciated.

  6. Bryan, most car radios do have built-in amplifiers. Unless it is known that your Honda Accord has an external amplifier, most likely the radio amplifier is built into your car stereo. Usually a “pop” sound does mean something has burned out or gone out. We would suggest you get your car radio checked out by the dealer or an experienced radio installer. Hope this helps. Good luck.

  7. I have a 2003 accord EX coupe dual climate control without navigation. I turned the stock radio on the other day and a “pop” noise came out of the speakers. Since then no sound comes out of any of the speakers. All buttons, display, cd player, etc. work great. I have tested all speakers in another car and they work fine. I’ve asked around about this problem and have been told the built in amp is probably blown. I’ve also been told there is no amp in this radio.

    Is there a built in amp in the stock radio? If that is the problem, is there a way for it to be fixed? Could this be a precursor to the “black screen”?

    Thanks

  8. Mohammed, in terms of problems you’re experiencing, it sounds like you may have some wires crossed. Our advice is to double check all your connections and run your remote off your 12 volt switched wire instead of a fuse. Just remember to use an inline 1-amp fuse on your remote turn on wire. Hope this helps. Good luck.

  9. I’ve got an 03 Accord LX 2.4L with about 140k miles. I’ve got amp installed on the stock radio that runs off the rear speakers. All I needed was a Hi/Lo converter which was around $25-30, and the remote was running off fuse# 5 from the interior, later I’ve moved it to fuse#20. #20 is for the winshield washer, which only turns on after the vehicle is fully cranked. I’ve done this because I didn’t want to end up with a low powered battery. I’ve also changed my alternator to a high performance 180amp output. It requires me to have an additional B+ running from the alternator to the battery via inline fused wire. I’ve also replace all of my speakers. I’ve got Kicker 6×9 3way on the rear with 100watts rms, and Pionner 6.5″ 4way with 60watts rms on the front doors. It works fine…. about 9 months ago I realized my radio dimmer stopped working. When the headlights are turned on the backlights for the instrument panel and the odotomenter turns on. But when the odometer is manually dimmed the radio does not dim. How can I solve this problem?

  10. i have a 2003 accord and am trying to hook an amp and subs up and i was wondering what exactly i need to do the job( hooking the amp up to the stock radio), and directions would help me so much. thank you in advance

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