Question: Where can I find a 2003 Nissan Xterra stereo wiring diagram, and what are the 2003 Nissan Xterra radio wiring harness color codes?
If you’re planning to upgrade the radio in your 2003 Nissan Xterra or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 2003 Nissan Xterra 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 2003 Nissan Xterra.
In This Guide
2003 Nissan Xterra Stereo Wiring Diagram
This 2003 Nissan Xterra stereo wiring chart shows you all the 2003 Nissan Xterra 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/Yellow |
| Accessory Switched Power Wire (12v+) | Green/Red |
| Ground Wire | Chassis |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | Blue/Red |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | N/A |
| Amplifier Turn-On Wire | N/A |
| Amplifier Mute Wire | N/A |
| Amplifier Location | N/A |
2003 Nissan Xterra Speaker Wiring Guide
This 2003 Nissan Xterra 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 2003 Nissan Xterra 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 (+) | Blue |
| Front Left Speaker Negative Wire (-) | Black/White |
| Front Right Speaker Positive Wire (+) | Brown |
| Front Right Speaker Negative Wire (-) | Black/Red |
| 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 (+) | Light Green |
| Rear Left Speaker Negative Wire (-) | Tan/Yellow |
| Rear Right Speaker Positive Wire (+) | Orange |
| Rear Right Speaker Negative Wire (-) | Black/Pink |
| 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 Nissan Xterra Speaker Sizes and Locations
This 2003 Nissan Xterra speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 2003 Nissan Xterra.
| 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 | 3″ 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 Doors |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Questions and Answers
If you have any questions about your 2003 Nissan Xterra 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 Nissan Xterra 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!
13 thoughts on “2003 Nissan Xterra Radio Wiring Diagram”
The above schematics didn’t work for my 2003 Nissan Xterra. I used a voltage meter to isolate the individual cables and found the bellow schematics to be correct for my car. Again, I have a 2003 Nissan Xterra (manual transmission and not the premium sound package). Since there seems to be a lack of information about this particular Xterra, I would check the wires before you continue. I take no responsibility if your Xterra is different.
Car Radio Battery Constant 12v+ Wire: Red/Yellow
Car Radio Accessory Switched 12v+ Wire: Green/Red
Car Radio Ground Wire: Pink/Black
Car Radio Dimmer Wire (headlights on): Blue/Red
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): Brown
Right Front Speaker Negative Wire (-): Black/Red
Left Rear Speaker Positive Wire (+): Green
Left Rear Speaker Negative Wire (-): Black/Yellow
Right Rear Speaker Positive Wire (+): Orange
Right Rear Speaker Negative Wire (-): Black/Pink
* One thing to note, the rear speaker wires are the thickest gauge (more so than even the power wires), presumably because those wires have to run to the back of the Xterra.
James, thanks for the 2003 Nissan Xterra radio wiring information contribution!
This was very helpful. Thanks!
Clint, we’re happy we could help you with your 2003 Nissan Xterra stereo wiring diagram needs.
I have a 2003 xterra, im working on putting a system in it, it still has the original radio, is there no remote wire? im so confused on how to do it.
Alex, technically you could connect your 2003 Nissan Xterra amplifier turn on wire to the radio switched 12v+ wire (blue). That way your amplifier is on whenever your 2003 Nissan Xterra is on and off whenever your 2003 Nissan Xterra is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good luck with your 2003 Nissan Xterra amplifier install.
Does anyone have the pinout for a 2004 Nissan Xterra with the Rockford Fosgate Option?
Tom, ask and you shall receive: 2004 Nissan Xterra Rockford Fosgate Stereo Wiring Diagram
I have a 2003 Xterra Se with the Rockford Fosgate stereo and the sound just stopped working nothing from the cd player or either band on the radio I tried looking at the fusebox to see if the amp had a fuse listed on the diagram but didn’t find one this problem was sudden one day it worked and the next it was gone. Thanks to anyone that can help. Jimmy
Jimmy, first double check ALL your fuses and make sure ALL your fuses are good. You can do this by using an Automotive Fuse Tester and making sure all of your fuses are not blown. If all of your fuses are good, your 2003 Nissan Xterra may have a factory amplifier that is faulty. Hope this points you in the right direction. Good luck with your 2003 Nissan Xterra stereo installation.
I have a 2003 Nissan Xterra with the 6 cd in-dash rockford Fosgate stereo. We have been trying to figure out how to hook up an I-pod jack. Is there a spot already back there or do I need to buy something special? So confused please help.
Amber, we suggest you purchase an automotive auxiliary input adapter. This adapter will allow you to input any Apple iPod, mp3 player or portable music player into your factory radio. This is the easiest and most cost effective way to add an audio input into your factory stereo. Here is the bluetooth transmitter you will need:
Aux Input Adapter for 2003 Nissan Xterra
If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2003 Nissan Xterra bluetooth transmitter installation.
hello i was wondering what the 2003 nissan xterra subwoofer size is? anyone know?