Question: Where can I find a 2008 Mercedes Benz SLK350 stereo wiring diagram, and what are the 2008 Mercedes Benz SLK350 radio wiring harness color codes?
If you’re planning to upgrade the radio in your 2008 Mercedes Benz SLK350 or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 2008 Mercedes Benz SLK350 radio wiring diagram shows all the radio wire harness colors, speaker wire colors, and speaker sizes. Use this head unit pinout guide to help with your car stereo installation or to troubleshoot radio wiring issues in your 2008 Mercedes Benz SLK350.
In This Guide
2008 Mercedes Benz SLK350 Stereo Wiring Diagram
This 2008 Mercedes Benz SLK350 stereo wiring chart shows you all the 2008 Mercedes Benz SLK350 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.
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Battery Constant Power Wire (12v+) | Pin #16 in 16-Pin Plug (Bottom of Harness) |
| Accessory Switched Power Wire (12v+) | Run a wire to the fuse box or ignition switch harness for switched power. |
| Ground Wire | Pin #15 in 16-Pin Plug (Bottom of Harness) |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | N/A |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | Pin #3 in 12-Pin Plug (Top Left of Harness) |
| Car Radio Speaker Amplifier Turn-On Trigger Wire | Pin #4 in 12-Pin Plug (Top Left of Harness) |
| Car Radio Subwoofer Amp Turn-On Trigger Wire | N/A |
| Car Radio Mute Wire | Pin #5 in 12-Pin Plug (Top Left of Harness) |
| Amplifier Location | Car amplifier is located under the carpet in the passenger footwell. |
2008 Mercedes Benz SLK350 Speaker Wiring Guide
This 2008 Mercedes Benz SLK350 speaker wiring guide provides all the speaker wire colors and speaker locations you need for an upgrade or replacement. Whether you are installing new speakers or troubleshooting your factory setup, this 2008 Mercedes Benz SLK350 chart makes it easy to identify each wire and where it connects. If you don’t see the car speaker wiring info you need, feel free to ask your question at the bottom of the page — we are here to help!
| Car Stereo Wire Function | Wire Color Code |
|---|---|
| Dash Center Speaker Positive Wire (+) | N/A |
| Dash Center Speaker Negative Wire (-) | N/A |
| 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 |
| Front Left Speaker Positive Wire (+) | Pin #1 in 16-Pin Plug (Bottom of Harness) |
| Front Left Speaker Negative Wire (-) | Pin #2 in 16-Pin Plug (Bottom of Harness) |
| Front Right Speaker Positive Wire (+) | Pin #5 in 16-Pin Plug (Bottom of Harness) |
| Front Right Speaker Negative Wire (-) | Pin #6 in 16-Pin Plug (Bottom of Harness) |
| 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 |
| Rear Left Speaker Positive Wire (+) | Pin #3 in 16-Pin Plug (Bottom of Harness) |
| Rear Left Speaker Negative Wire (-) | Pin #4 in 16-Pin Plug (Bottom of Harness) |
| Rear Right Speaker Positive Wire (+) | Pin #7 in 16-Pin Plug (Bottom of Harness) |
| Rear Right Speaker Negative Wire (-) | Pin #8 in 16-Pin Plug (Bottom of Harness) |
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (-) | N/A |
2008 Mercedes Benz SLK350 Speaker Sizes and Locations
This 2008 Mercedes Benz SLK350 speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 2008 Mercedes Benz SLK350.
| Application | Speaker Size/Location |
|---|---|
| Dash Center Speaker Size | N/A |
| Dash Center Speaker Depth | N/A |
| Dash Center Speaker Location | N/A |
| Front Tweeter Size | 1″ Tweeters |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Front Speaker Size | 6.5″ Speakers |
| Front Speaker Depth | 1.5″ Depth |
| Front Speaker Location | Front Doors |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speakers Size | 3.5″ Speakers |
| Rear Speaker Depth | 1.5″ Depth |
| Rear Speaker Location | Rear Panels |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Questions and Answers
If you have any questions about your 2008 Mercedes Benz SLK350 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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