2002 Toyota Corolla Car Radio Stereo Audio Wiring Diagram

Whether your an expert Toyota electronics installer or a novice Toyota enthusiast with a 2002 Toyota Corolla, a 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 amplifier, car navigation or any car electronics is identifying the correct color wires for a 2002 Toyota Corolla.

The Modified Life staff has taken all its Toyota car radio wiring diagrams, Toyota car audio wiring diagrams, Toyota car stereo wiring diagrams, Toyota car radio wiring schematics, Toyota car wiring diagrams and cataloged them online. Feel free to use any Toyota 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 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 2002 Toyota Corolla.

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 installation.

If you would like to help the Modified Life community by adding a car audio wiring diagram, car stereo wiring diagram or car radio wiring diagram to our resource, please feel free to post any additional information about the 2002 Toyota Corolla on this page.

2002 Toyota Corolla Car Radio Stereo Audio Wiring Diagram

Car Radio Constant 12v+ Wire: Blue/Yellow
Car Radio Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: 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 hash jaf May 6, 2008 at 7:40 pm


  • Reply ModifiedLife May 6, 2008 at 8:06 pm

    Hash, we’re glad we could help you with your car stereo wiring diagram needs.

  • Reply Kris July 9, 2008 at 8:07 pm

    I’ve done car stereo install following your guides before and they’ve all turned out great. How ever I just tried on my 2002 corolla s and I heard a click behind the dash, sounded like it was right below where the radio sits. Now I’ve checked all the fuses like 5 times I’m 100% they’re fine, is there another fuse or something sitting behind or around the radio that would cause the clock and radio not to come on? I know that the radio and clock are on the same fuse that’s why I check that first, but the cig lighter is working, and if I remember that’s on that fuse too….So I’m a little confused as to what it could be. Help please, Kris

  • Reply ModifiedLife July 10, 2008 at 3:29 am

    Kris, check to see if the back of your after market car radio or the switched power line on your aftermarket radio wiring harness has a replaceable fuse. The radio fuse may have blown and needs replacing. Hope this helps. Good luck.

  • Reply Kris July 10, 2008 at 4:27 am

    They do and they’re both good, I’ve never had this happen before heh. Oh well, I guess I’ll have to find a way around it. Thank you. Kris

  • Reply David February 28, 2009 at 12:41 am

    Hi Guys, awesome, thanks – I had a mate wire in my stereo years ago but it would always lose my preset stations when I turned off the ignition. When I rewired it per your instructions above it worked great! Thanks again!

  • Reply ModifiedLife March 5, 2009 at 4:17 am

    David, we are glad we could help you with your car radio wiring diagram needs.

  • Reply darryl November 17, 2011 at 4:38 pm

    i am having a hard time finding out why the red wire feeding my 2002 toyota corolla radio is not hot when the key is turn on. where is it fused? thanks

  • Reply ModifiedLife November 29, 2011 at 6:20 pm

    Darryl, double check ALL your fuses using an 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. If all of your fuses are good, we suggest you take your car to an experienced audio installer and have them troubleshoot your problem. Hope this helps. Good luck with your 2002 Toyota Corolla radio troubleshooting.

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