2004 Toyota Echo Car Audio Wiring Guide

Whether your an expert Toyota Echo mobile electronics installer, Toyota Echo fanatic, or a novice Toyota Echo enthusiast with a 2004 Toyota Echo, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2004 Toyota Echo 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 Toyota Echo.

The Modified Life staff has taken all its Toyota Echo car radio wiring diagrams, Toyota Echo car audio wiring diagrams, Toyota Echo car stereo wiring diagrams, Toyota Echo car radio wiring schematics, Toyota Echo 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 Toyota Echo part or component.

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


If you have any questions pertaining to the audio system in the 2004 Toyota Echo, 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 Toyota Echo Car Audio Wiring Guide

Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Pink
Car Stereo Dimmer Wire: Violet
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Violet
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White

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  • Reply Helen February 19, 2010 at 4:19 pm

    Hi, does anyone know where the fuse for the radio is located in the 2004 Toyota Echo? I know that fuses are either in the engine compartment or in the “knee space” below the steering wheel. My owner’s manual doesn’t tell you which fuse is which. My Echo is the base model. It doesn’t even have a clock. All help is appreciated! Thanks, Helen.

  • Reply Glen May 26, 2011 at 2:29 am

    My audio system in my 2004 Toyota Echo hatchback stop working, I checked the fuse box all regular fuses are OK and it would be greatly appreciated if someone tell me where else I should check? is there additional fuse box? if yes where is it?

  • Reply ModifiedLife June 6, 2011 at 1:21 am

    Glen, double check ALL your fuses using a Automotive Fuse Tester because certain vehicles may have a wire tied into another circuit not labeled as car radio. You may have additional fuse boxes by the driver side of the dash, passenger side of the dash, driver kick panel, passenger kick panel, under the steering column or under the hood. Hope this helps. Good luck with your 2004 Toyota Echo radio troubleshooting.

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