Question: Where can I find a 2008 Toyota Tacoma stereo wiring diagram? What are the 2008 Toyota Tacoma radio wiring harness colors?
If you’re looking to change the radio in your 2008 Toyota Tacoma or troubleshoot why your car radio stopped working, we’re here to help!
Our comprehensive 2008 Toyota Tacoma stereo wiring diagram shows you all the stereo wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2008 Toyota Tacoma stereo wiring guide to help you with your car radio and installation needs.
In This Guide
2008 Toyota Tacoma Stereo Wiring Diagram
This 2008 Toyota Tacoma stereo wiring chart shows you all the 2008 Toyota Tacoma stereo wire colors and their functions. Utilize this guide to help you with a car radio install or help with a car radio troubleshoot. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.
| Application | Radio Wire Color |
|---|---|
| Car Radio Battery Wire (Constant Power 12v+) | Blue/Yellow |
| Car Radio Accessory Wire (Switched Power 12v+) | Gray |
| Car Radio Ground Wire | Brown |
 Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install! |
|
| Car Radio Illumination Wire | Green |
| Car Stereo Dimmer Wire | N/A |
| Car Radio Antenna Trigger Wire | N/A |
| Car Radio Amp Turn-On Trigger Wire | N/A |
| Car Radio Amp Mute Wire | N/A |
| Car Radio Amplifier Location | N/A |
| Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio. |
|
2008 Toyota Tacoma Speaker Wiring Guide
This 2008 Toyota Tacoma speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2008 Toyota Tacoma speaker wiring guide to help you with a speaker replacement or speaker upgrade. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.
| Application | Speaker Wire Color |
|---|---|
| Front Center Speaker Positive Wire (+) | N/A |
| Front Center Speaker Negative Wire (-) | N/A |
| Upgrade your Center Speakers for awesome sound! |
|
| Front Left Tweeter Positive Wire (+) | N/A |
| Front Left Tweeter Negative Wire (-) | N/A |
| Front Right Tweeter Positive Wire (+) | N/A |
| Front Right Tweeter Negative Wire (-) | N/A |
| Upgrade your Tweeters for cleaner audio highs! |
|
| Front Left Speaker Positive Wire (+) | Pink |
| Front Left Speaker Negative Wire (-) | Purple |
| Front Right Speaker Positive Wire (+) | Green |
| Front Right Speaker Negative Wire (-) | Blue |
| Use a Speaker Wire Harness for easy Speaker Installation! |
|
| Rear Left Tweeter Positive Wire (+) | N/A |
| Rear Left Tweeter Negative Wire (-) | N/A |
| Rear Right Tweeter Positive Wire (+) | N/A |
| Rear Right Tweeter Negative Wire (-) | N/A |
| Upgrade your Tweeters for cleaner audio highs! |
|
| Rear Left Speaker Positive Wire (+) | Black |
| Rear Left Speaker Negative Wire (-) | Yellow |
| Rear Right Speaker Positive Wire (+) | Red |
| Rear Right Speaker Negative Wire (-) | White |
| Upgrade your Subwoofer for deeper lows! |
|
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (-) | N/A |
2008 Toyota Tacoma Speaker Sizes and Location
This 2008 Toyota Tacoma speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2008 Toyota Tacoma.
| Application | Speaker Size and Location |
|---|---|
| Front Center Speaker Size | N/A |
| Front Center Speaker Depth | N/A |
| Front Center Speaker Location | N/A |
| Upgrade your Center Speakers for awesome sound! |
|
| Front Tweeter Size | N/A |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Upgrade your Tweeters for cleaner audio highs! |
|
| Front Speaker Size | 6″ x 9″ Speakers |
| Front Speaker Depth | 4″ Depth |
| Front Speaker Location | Front Doors |
| Use a Speaker Wire Harness for easy Speaker Installation! |
|
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Use a Speaker Wire Harness for easy Speaker Installation! |
|
| Rear Speaker Size | 6.5″ Speakers |
| Rear Speaker Depth | 3.6″ Depth |
| Rear Speaker Location | Rear Doors |
| Upgrade your Subwoofer for deeper lows! |
|
| Car Subwoofer Speaker Size | N/A |
| Car Subwoofer Speaker Depth | N/A |
| Car Subwoofer Speaker Location | N/A |
Questions and Answers
If you have any questions about your 2008 Toyota Tacoma radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!
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5 thoughts on “2008 Toyota Tacoma Car Radio Wiring Diagram”
Gary, your 2012 Toyota Tacoma factory stereo system may run on a different impedance (ohm rating) than your aftermarket speakers. Most aftermarket speakers run on 4-ohms. We suggest you install your aftermarket radio then run wires straight to the head unit rather than using the factory amplifier. This will eliminate any problems with mismatched ohm ratings. 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 with your 2012 Toyota Tacoma speaker and stereo installation.
I have a 2012 Tacoma extra cab, 2.7 L ,SR5 package,4×4. I bought the single din Alpine CDE-123 head unit and two sets of component speakers. Fronts to be Energy 6.5 and rears to be jbl 6×8 and a sub-powered by Infinity – Basslink 200w amp and powered by an Alpine PDF-4-100w x4 Toyota’s six speaker stereo consists of 2 speakers in each fronts doors (mid range and tweeter) equals 4 speakers plus two in the ceiling which equals 6. No rear door speakers. I took off both front door panels, removed both 6×9 and tweeters.(Garbage)and installed a set of Energy 6.5 component speakers. The wiring is the following: 4 wires(Plug In) to tweeter and two wires to the 6×9. Color of the wires is Lt. Green and blue, Lt Green being the positive and blue the negative. I took the two 6×9 wires and ran direct to the crossover for power,ran from the crossover to the mid range energy and tweeter wire to the crossover. A-Ok so far. Turned on power and nothing. When I plugged in the old tweeter there was power but the new energy’s sounded awful,static,mid range thumping, so I took and cut off the old tweeter plug(Two Lt. Green and two blue and joined them together – Lt. Green to Lt. Green and Blue to blue (parallel wiring). and now I have power, but my new speakers sound horrible. Have not changed the head unit yet. What am I doing wrong. Should I run a new speaker wire from the door to the head unit? or wait to change the head unit to figure it out then. I am a little confused. I do what I can, running cables so when I take her in to install the new head unit everything else is done for the installer. The present head doesn’t have enough wattage to make my new speakers sing, not even close. What is my best wiring option. Thanks, Gary.
Im was an installer in my past life. Here is a good tip for you guys. When you get your dash all apart drop your side cutters. Spend the extra money and get a wire harness.
Here is what cutting those wires can do.
1. Loose wires can be a fire hazard
2. Its messier than purchasing a wire harness.
3. When you want to sell your rig it makes it very hard to throw the stock unit back in.
I own a 2008 Toyota Tacoma TRD OFFROAD. I just installed a sat radio and a harmin kardin ipod/ aux port. Using stock JBL desk. If you have questions feel free to ask. Thanks, Brian. Time To Shine Mobile (IASCA)
Hey, does anyone know if the green radio illumination wire is the same as the dimmer wire on a Kenwood deh-b848u for a 2008 Toyota Tacoma? I’m trying to dim the radio using the dash control. Thanks for your help!
Concern: Aftermarket radio has one plugin, the factory radio I just pulled out has like 3 plugs. Do I cut and splice only the wires I need and forget the others or what? Thanks!