2004 Saturn Ion 1 Car Radio Wiring Diagram

Whether your an expert Saturn Ion 1 mobile electronics installer, Saturn Ion 1 fanatic, or a novice Saturn Ion 1 enthusiast with a 2004 Saturn Ion 1, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2004 Saturn Ion 1 vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.

One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 2004 Saturn Ion 1.

The Modified Life staff has taken all its Saturn Ion 1 car radio wiring diagrams, Saturn Ion 1 car audio wiring diagrams, Saturn Ion 1 car stereo wiring diagrams, Saturn Ion 1 car radio wiring schematics, Saturn Ion 1 car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 2004 Saturn Ion 1 part or component.

Feel free to use any Saturn Ion 1 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 Saturn Ion 1 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2004 Saturn Ion 1.


If you have any questions pertaining to the audio system in the 2004 Saturn Ion 1, please feel free to post it at the bottom of this page and either we’ll do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you’re looking for.

Request a Car Stereo Wiring Diagram

If you can’t find a particular car audio wire diagram on Modified Life, please feel free to post a car radio wiring diagram request at the bottom of this page and we’ll do our best to find you the diagram or schematic you need for your mobile audio installation.

Adding More Information

If you would like to help the Modified Life community by adding any missing information or adding a new car audio wire diagram to our resource, please feel free to post it at the bottom of this page.

2004 Saturn Ion 1 Car Radio Wiring Diagram

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: Pink
Car Stereo Amplifier Location: Located under the rear deck in the trunk.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

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  • Reply Steve Scott May 22, 2009 at 5:55 pm

    I followed the diagram. The speaker wire color code works great, however there are two black/white and two orange wires in the harnass, I only hooked up one orange and only one black/white. Now, after a blown 10a fuse and a dead battery, the fuse is replaced and the battery is charging, but the stereo sounds great!

  • Reply ModifiedLife June 1, 2009 at 11:33 pm

    Steve, we’re glad we could help you with your 2004 Saturn Ion car stereo wiring diagram needs.

  • Reply Michael September 6, 2010 at 3:59 pm

    I have a 2004 ion redline and installed an aftermarket deck. now my normal car speakers dont work at all while my subs do work. i was told that i need to hook up one of the 2 blue wires from my deck (the one that isnt going to my aftermarket amp) to the wire that controles my factory amp and that would fix the problem but there isnt a wire that i can find that doesnt already go to something else ie: the front and rear speakers. can anyone help im getting frustated!

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