Question: Where can I find a 2004 Hyundai Elantra stereo wiring diagram, and what are the 2004 Hyundai Elantra radio wiring harness color codes?
If you’re planning to upgrade the radio in your 2004 Hyundai Elantra or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 2004 Hyundai Elantra radio wiring diagram shows all the radio wire harness colors, speaker wire colors, and speaker sizes. Use this head unit pinout guide to help with your car stereo installation or to troubleshoot radio wiring issues in your 2004 Hyundai Elantra.
In This Guide
2004 Hyundai Elantra Stereo Wiring Diagram
This 2004 Hyundai Elantra stereo wiring chart shows you all the 2004 Hyundai Elantra stereo 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.
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Battery Constant Power Wire (12v+) | Red |
| Accessory Switched Power Wire (12v+) | Yellow |
| Ground Wire | Black |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | Pink |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | Gray/Orange |
| Amplifier Turn-On Wire | N/A |
| Amplifier Mute Wire | N/A |
| Amplifier Location | Car amplifier is located on the right side of the trunk. |
2004 Hyundai Elantra Speaker Wiring Guide
This 2004 Hyundai Elantra speaker wiring guide provides all the speaker wire colors and speaker locations you need for an upgrade or replacement. Whether you are installing new speakers or troubleshooting your factory setup, this 2004 Hyundai Elantra chart makes it easy to identify each wire and where it connects. If you don’t see the car speaker wiring info you need, feel free to ask your question at the bottom of the page — we are here to help!
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Dash Center Speaker Positive Wire (+) | N/A |
| Dash Center Speaker Negative Wire (-) | N/A |
| 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 |
| Front Left Speaker Positive Wire (+) | White |
| Front Left Speaker Negative Wire (-) | Brown |
| Front Right Speaker Positive Wire (+) | Green |
| Front Right Speaker Negative Wire (-) | Orange |
| 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 |
| Rear Left Speaker Positive Wire (+) | Yellow |
| Rear Left Speaker Negative Wire (-) | Black |
| Rear Right Speaker Positive Wire (+) | Orange |
| Rear Right Speaker Negative Wire (-) | Blue |
| Right Subwoofer Positive Wire (+) | Brown |
| Right Subwoofer Negative Wire (-) | White |
| Left Subwoofer Positive Wire (+) | Red |
| Left Subwoofer Negative Wire (-) | Blue |
2004 Hyundai Elantra Speaker Sizes and Locations
This 2004 Hyundai Elantra speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 2004 Hyundai Elantra.
| Application | Speaker Size/Location |
|---|---|
| Dash Center Speaker Size | N/A |
| Dash Center Speaker Depth | N/A |
| Dash Center Speaker Location | N/A |
| Front Tweeter Size | N/A |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Front Speaker Size | 6.5″ Speakers |
| Front Speaker Depth | 2.2″ Depth |
| Front Speaker Location | Front Doors |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speaker Size | 6″ x 9″ Speakers |
| Rear Speaker Depth | 3″ Depth |
| Rear Speaker Location | Rear Deck |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Questions and Answers
If you have any questions about your 2004 Hyundai Elantra 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 2004 Hyundai Elantra 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!
10 thoughts on “2004 Hyundai Elantra Radio Wiring Diagram”
Front speakers are in the doors, 6-3/4″ diameter rounds. 2.25″ maximum depth.
NevynPA, thanks for the 2004 Hyundai Elantra speaker size information contribution!
had a professional install a cd/stereo in my 2004 elantra. the stereo works great but now I have no dash lights, my TCS is off and when I turn on my headlights, the light display for the clock turns off! I am having a hard time convincing the guy that he missed something! Do you have any suggestions? Thanks for any help you can provide. Julie
Julie, it sounds like your installer did not wire up the illumination wire on your 2004 Hyundai Elantra stereo. The illumination wire is sometimes tied into your dash lights. Hope this helps. Good luck with troubleshooting your 2004 Hyundai Elantra stereo install.
I just installed a pioneer radio into a 2004 Elantra. I’ve saved radio stations by programming, but after turning off the switch in the car, then restarting, the stations are not saved. This was true of the radio I just took out of it. Any ideas on why this happens? Is it a wiring issue? I’ve tried everything.
Brettle, you may have mixed up the battery constant and accessory switched wires. The battery constant always sends power to the radio to save your radio stations and other audio settings. The accessory switched wire sends power to your radio only when the key is in the ignition and your 2004 Hyundai Elantra is on. Check your wiring and make sure the correct radio wires are hooked up to the correct wires on your factory harness. Hope this helps. Good luck with your 2004 Hyundai Elantra radio installation.
There is something very wrong with the ground wiring in my 04 Elantra. FM is fine, but AM is aweful (need this for baseball!). It sounds perfect when the car isn’t running, but as soon as the car starts, you can barely hear a thing. Where does the ground wire run to? Do you think I can trace it to find a short or the connection point to the frame? Any ideas are welcome.
CG, you can always try taking the radio ground wire from the back of your radio and grounding it to the chassis to make sure your ground is good. Hope this helps. Good luck with your 2004 Hyundai Elantra troubleshooting.
what color is the illumination wire? im haven the same prob with my dash lights. anyone?
Logan, the 2004 Hyundai Elantra illumination wire is the dark green/white wire located at your factory stereo wiring harness. Hope this helps. Good luck with your 2004 Hyundai Elantra stereo install.