Question: Where can I find a 2004 Mazda RX-8 stereo wiring diagram? What are the 2004 Mazda RX-8 radio wiring harness colors?
If you’re looking to change the radio in your 2004 Mazda RX-8 or troubleshoot why your car radio stopped working, we’re here to help!
Our comprehensive 2004 Mazda RX-8 stereo wiring diagram shows you all the stereo wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2004 Mazda RX-8 stereo wiring guide to help you with your car radio and installation needs.
In This Guide
2004 Mazda RX-8 Stereo Wiring Diagram
This 2004 Mazda RX-8 stereo wiring chart shows you all the 2004 Mazda RX-8 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/Red |
| Car Radio Accessory Wire (Switched Power 12v+) | Green/Orange |
| Car Radio Ground Wire | Chassis |
 Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install! |
|
| Car Radio Illumination Wire | N/A |
| 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. |
|
2004 Mazda RX-8 Speaker Wiring Guide
This 2004 Mazda RX-8 speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2004 Mazda RX-8 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 (+) | Red |
| Front Left Speaker Negative Wire (-) | White |
| Front Right Speaker Positive Wire (+) | White/Black |
| Front Right Speaker Negative Wire (-) | Yellow/Red |
| 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 (+) | Purple |
| Rear Left Speaker Negative Wire (-) | Pink |
| Rear Right Speaker Positive Wire (+) | White/Blue |
| Rear Right Speaker Negative Wire (-) | Black/Blue |
| Upgrade your Subwoofer for deeper lows! |
|
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (-) | N/A |
2004 Mazda RX-8 Speaker Sizes and Location
This 2004 Mazda RX-8 speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2004 Mazda RX-8.
| 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 8″ 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″ x 9″ Speakers |
| Rear Speaker Depth | 4″ Depth |
| Rear Speaker Location | Rear Deck |
| 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 2004 Mazda RX-8 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!
Contribute
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13 thoughts on “2004 Mazda RX-8 Car Audio Wiring Guide”
Hi, trying to find the 2004 mazda rx8 mute wire to connect a hands free kit. anyone?
Caleb, you will need an automotive aux input adapter. This adapter will allow you to input any Apple iPod, portable music player or mp3 player into your factory car stereo. This is the easiest and most cost effective way to add an audio input into your factory car stereo. Here is the adapter you will need:
Auxililary Input Adapter for 2007 Mazda RX8
You can hook up your an amplifier and subwoofer to your stock stereo. You will need some aftermarket electronics to hook up a subwoofer to your 2007 Mazda RX8 factory stereo. You will need five components:
1. Car Subwoofer
2. Car Subwoofer Box to house your car subwoofer.
3. Car Audio Amplifier that matches your subwoofer power needs and ohm rating.
4. Car Amplifier Wiring Kit that can handle the power needs of your amplifier.
5. RCA Line Out Converter to feed an audio signal from your factory radio to your aftermarket amplifier.
First run all your amplifier power from your car battery to where you plan on mounting your amplifier. Next, run your ground wire from your grounding point to your amplifier. Wire up the RCA Line Out Converter to the rear speaker wires to get a full range audio source. Next, connect one end of your RCA jacks to the Line Out Converter and the other end of the RCA jacks to your amplifier. This will provide an audio signal to your after market amp. Lastly, connect your subwoofer to your after market amplifier using the speaker wire in the amplifier wiring 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 with your 2007 Mazda RX8 amplifier installation.
hi, I have a 2007 Mazda RX8 sport (base stereo). I’d like to add a aux input AND an amp out for a sub. is there a kit with both of those? or am I not able to do so. thanks
Sabrina, here is the car radio dash kit you will need:
Car Stereo Dash Kit for 2004 Mazda RX8
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 2004 Mazda RX8 radio installation.
i have to buy a whole new kit and radio for my 2004 mazda rx8 but i need help knowing what to get. im a girl so i really dont know much about all this but i know i have to buy a dash kit and the radio. what kit is for my car?
Marshall, most vehicles have a factory hole with a rubber or plastic grommet at the firewall. This is usually the standard place to run a power wire through the firewall. If one of these holes are not available or not large enough, a hole will have to be drilled to accommodate your power wire. Choose something on the engine side of the firewall as reference and try to match it up on the interior side of the firewall. This will make sure you do not drill through anything important. Then drill a hole somewhere near or beside your reference point. Make sure to use a firewall grommet to prevent the power wire from chaffing on the firewall that could potentially cause a short. Hope this helps. Good luck with your 2004 Mazda RX8 amplifier installation.
I’m wiring my amp and I was wondering where can I run the cable that goes from the battery to the amp? or what would be the best way going about this
Andy, we suggest you purchase an automotive auxiliary input adapter. This adapter will allow you to input any Apple iPod, mp3 player or portable music player into your factory radio. This is the easiest and most cost effective way to add an audio input into your factory stereo. Here is the adapter you will need:
Aux Input Adapter for 2004 Mazda RX8
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 2004 Mazda RX8 aux input adapter installation.
I have a 2004 mazda rx8, with a stock 6cd radio. And I need to know what’s the best way to get my iPhone or iPod to work on there with changing the stock radio?
can i add a woofer to the 2004 mazda rx8 bose amplifier directly without extra amplifier. anyway to add a subwoofer without long wiring techniques? anyone?
what’s the steering wheel control wire colors?
Mark, first double check ALL your fuses and make sure ALL your fuses are good. You can do this by using an Automotive Fuse Tester and making sure all of your fuses are not blown. If all of your fuses are good, make sure your amplifier turn on wire its hooked up correctly. Technically you could connect your 2004 Mazda RX8 amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 2004 Mazda RX8 is on and off whenever your 2004 Mazda RX8 is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good luck with your 2004 Mazda RX8 amplifier install.
I am currently adding a amplifier and sub and having trouble finding where I connect the remote wire for the amp on my 2004 rx8. Have tried connecting it to the blue cable going into the Bose amp under the rear shelf but does not seem to work???