Request a Scion Car Radio Stereo Wiring Diagram

Whether your an expert Scion mobile electronics installer, Scion fanatic, or a novice Scion enthusiast with an Scion, a Scion car stereo wiring diagram can save yourself a lot of time. Automotive wiring in Scion 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 Scion tC, Scion xA, Scion xB or Scion xD 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 Scion car radio wiring diagrams, Scion car audio wiring diagrams, Scion car stereo wiring diagrams, Scion car radio wiring schematics, Scion 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 Scion part or component.

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

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 radio wiring diagram request on this page and we’ll do our best to find you the diagram, schematic or 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 Scion car audio or Scion car electronics wiring information on this page.

Scion Radio Wiring Guides


  1. my girlfriend has a 05 scion tc and i was trying to keep her stock headunit so i hooked up a line ouput converter so i could run an amp and subs but the system (subs) wont even move. i dont know what i did wrong can someone help me?

  2. ModifiedLife Reply

    David, ask and you shall receive: 2008 Scion tC Car Stereo Wiring Diagram

    Removing the factory amp and replacing it with an aftermarket amplifier is not that difficult. All you have to do is provide enough power, a good grounding point and an amp turn on wire. In order to provide your aftermarket amplifier with the factory audio signal, you may have to use a line out converter. Here is the Line-Out Converter you need:

    Scosche 2-Channel Speaker to RCA Line Out Converter

    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.

  3. David Bennett Reply

    I am looking for a stereo wiring diagram for a 2008 Scion tc. The Scion stereo part# is PT546-00080 made by Pioneer. There is a subwoofer in the back under the rear deck and it has an ipod attachment and aux plug in the center console. I would like to keep the head unit and ipod\ aux inputs, delete the rear sub and add an Alpine 1000watt amp and 2 “R” series 12″ subs. Also, The amp that I have hooks up via RCA jacks so any help there would be appreciated.

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