Whether your an expert Pontiac electronics installer or a novice Pontiac enthusiast with a 2003 Pontiac Sunfire, a Pontiac car stereo wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car stereo, car radio, car speakers, car subwoofer, car amplifier, mobile amp, mobile navigation or any car audio electronics is identifying the correct color audio wires for a 2003 Pontiac Sunfire headlight bulb size you need for your low beam or high beam and save time. Also, find your other car light bulb sizes including your fog light, reverse light, turn signal, brake light and more. It’s that easy!
The Modified Life staff has taken all its Pontiac car radio wiring diagrams, Pontiac car audio wiring diagrams, Pontiac car stereo wiring diagrams, Pontiac car radio wiring schematics, Pontiac car wiring diagrams and cataloged them online. Feel free to use any Pontiac car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the car audio wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2003 Pontiac Sunfire.
If you can’t find your car audio wire diagram, car stereo wire diagram or car radio wire diagram on Modified Life, please feel free to post a car wiring diagram request (Car Stereo Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile audio installation.
If you would like to help the Modified Life community by adding a car audio wire diagram, car stereo wire diagram or car radio wire diagram to our resource, please feel free to post any additional car audio information about the 2003 Pontiac Sunfire on this page.
2003 Pontiac Sunfire Car Radio Wiring Guide
Application | Wire Color |
---|---|
Car Radio Battery Constant 12v+ Wire | Orange |
Car Radio Accessory Switched 12v+ Wire | The radio harness does not provide a switched power source. Run a wire to the fuse box for switched power. |
Car Radio Ground Wire | Black |
Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install! | |
Car Radio Illumination Wire | Gray |
Car Stereo Dimmer Wire | Brown |
Car Stereo Antenna Trigger Wire | Pink |
Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio. | |
Car Stereo Amp Trigger Wire | Pink |
Car Stereo Amplifier Location | 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 (+) | Tan |
Front Left Speaker Negative Wire (-) | Gray |
Front Right Speaker Positive Wire (+) | Light Green |
Front Right Speaker Negative Wire (-) | Dark Green |
Rear Left Speaker Positive Wire (+) | Brown |
Rear Left Speaker Negative Wire (-) | Yellow |
Rear Right Speaker Positive Wire (+) | Dark Blue |
Rear Right Speaker Negative Wire (-) | Light Blue |
Use a Steering Wheel Control Adapter to Keep Your Steering Wheel Controls. |
7 thoughts on “2003 Pontiac Sunfire Radio Wiring Guide”
The radio diagram above does not show what the 2 purple wires are or the other black wire that is not the ground wire. also which of the wires would be the radio ignition wire for the 2003 pontiac sunfire? anyone know?
I bought a JVC kd-s17 to put into my 2002 Pontiac sunfire and I need a wiring harness however walmart doesn’t have one. I tried to hook it up wire to wire but it still didn’t work..my original harness has been separated from the wires (in other words cut off) is there anyway to fix it and get my new radio in and working good???
on the aftermarket deck im installing into my 2000 sunfire, there is a red wire (ignition wire) how do i/where do i hoook this wire up at into the car. the above diagram says the radio harness doesnt have this wire, and you need it hook it into the fuse box? help please
Greg, it sounds like you may have mixed up some of your wiring. The double check your wiring, especially your constant wire and switched wire connections. Hope this helps. Good luck.
I recently installed an aftermarket deck into my 03 sunfire and now it seems to be draining my battery. Any ideas on why this is happening?
Tommy, ask and you shall receive: 2001 Pontiac Sunfire Car Stereo Wiring Diagram
Is the radio wiring diagram the same for an 01 sunfire because it shows only the 03