2006 Chevrolet Trailblazer Car Stereo Wiring Diagram

2006 Chevrolet Trailblazer Car Stereo Wiring Diagram

Whether your an expert Chevrolet Trailblazer mobile electronics installer, Chevrolet Trailblazer fanatic, or a novice Chevrolet Trailblazer enthusiast with a 2006 Chevrolet Trailblazer, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2006 Chevrolet Trailblazer 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 2006 Chevrolet Trailblazer.

The Modified Life staff has taken all its Chevrolet Trailblazer car radio wiring diagrams, Chevrolet Trailblazer car audio wiring diagrams, Chevrolet Trailblazer car stereo wiring diagrams, Chevrolet Trailblazer car radio wiring schematics, Chevrolet Trailblazer 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 2006 Chevrolet Trailblazer part or component.

Feel free to use any Chevrolet Trailblazer 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 Chevrolet Trailblazer wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2006 Chevrolet Trailblazer.


If you have any questions pertaining to the audio system in the 2006 Chevrolet Trailblazer, 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.

2006 Chevrolet Trailblazer Car Stereo Wiring Diagram

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 fusebox for switched power.
Car Radio Ground Wire: Black/White
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
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 (+): 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

6 Replies to “2006 Chevrolet Trailblazer Car Stereo Wiring Diagram”

  1. First off… How’s everyone? The factory radio in the 06 trailblazer has a red alarm l.e.d in it. I know it has to be some kind of wire that goes to it. My question is: Do I look over that wire or do i need some kind of interface to make sure everything stay working properly? Thanks for your time…

  2. I am trying to install an aftermarket stereo in a 2006 trailblazer. This model does not have onstar or the bose system. I have read the interface is required to maintain certain features on the car. My first question is, what exactly would I lose if I do not use the interface. I could care less about the chimes, but some other features I might want. Secondly, I have had a hard time finding the wiring harness or the installation kit for the 06s. Does anybody know a good place to look?

  3. Steve, we can’t say exactly what will go out if you don’t use the interface. As for your dash kit, here is the 2006 Chevrolet Trailblazer dash kit you need:

    2006 Chevy Trailblazer Radio Dash Kit

    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.

  4. I currently own a 2006 Chevy Trailblazer in which I installed a 7.1″ Touch Screen Stereo. Everything works great except for the two right speakers. The sound from these speakers is barely audible and slightly distorted. They also randomly start working on their own if I’m lucky. When this happens the sound quality goes up 100% and is great. This model has the On-star feature installed but I used a wiring harness during the stereo installation that bypasses its functions. Does anyone know if the sound goes through some kind of a central control unit/amp or am i simply dealing with some kind of short? (this also was an issue with the last stereo so the radio itself cannot be the problem) I would greatly appreciate any help anyone could give on this issue. Thank You

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