Question: Where can I find a 1988 Mazda RX-7 stereo wiring diagram, and what are the 1988 Mazda RX-7 radio wiring harness color codes?
If you’re planning to upgrade the radio in your 1988 Mazda RX-7 or troubleshoot issues with your car stereo, this guide is here to help!
Our comprehensive 1988 Mazda RX-7 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 1988 Mazda RX-7.
In This Guide
1988 Mazda RX-7 Stereo Wiring Diagram
This 1988 Mazda RX-7 stereo wiring chart shows you all the 1988 Mazda RX-7 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+) | Blue/Red |
| Accessory Switched Power Wire (12v+) | Blue/White |
| Ground Wire | Chassis |
Use a Wiring Harness  and Dash Kit  for an Easy Install! |
|
| Illumination Wire | Red/Black |
| Dimmer Wire | N/A |
| Antenna Trigger Wire | N/A |
| Amplifier Turn-On Wire | N/A |
| Amplifier Mute Wire | N/A |
| Amplifier Location | N/A |
1988 Mazda RX-7 Speaker Wiring Guide
This 1988 Mazda RX-7 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 1988 Mazda RX-7 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 (+) | Blue |
| Front Left Speaker Negative Wire (-) | Blue/White |
| Front Right Speaker Positive Wire (+) | Blue/Red |
| Front Right Speaker Negative Wire (-) | Blue/Yellow |
| 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 (+) | Blue/Red |
| Rear Left Speaker Negative Wire (-) | Blue/Green |
| Rear Right Speaker Positive Wire (+) | Blue/White |
| Rear Right Speaker Negative Wire (-) | Blue/Green |
| Subwoofer Positive Wire (+) | N/A |
| Subwoofer Negative Wire (-) | N/A |
1988 Mazda RX-7 Speaker Sizes and Locations
This 1988 Mazda RX-7 speaker guide includes speaker sizes, speaker locations, and helpful info on speaker upgrades. Use this chart to find out what size speakers fit your 1988 Mazda RX-7.
| 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 | N/A |
| Front Tweeter Depth | N/A |
| Front Tweeter Location | N/A |
| Front Speaker Size | 5.25″ Speakers |
| Front Speaker Depth | 3″ Depth |
| Front Speaker Location | Front Doors |
| Rear Tweeter Size | N/A |
| Rear Tweeter Depth | N/A |
| Rear Tweeter Location | N/A |
| Rear Speaker Size | 5.25″ Speakers |
| Rear Speaker Depth | 3″ Depth |
| Rear Speaker Location | Side Panels |
| Subwoofer Size | N/A |
| Subwoofer Depth | N/A |
| Subwoofer Location | N/A |
Questions and Answers
If you have any questions about your 1988 Mazda RX-7 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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5 thoughts on “1988 Mazda RX-7 Audio Wiring Diagram”
In the 1988 Mazda RX7 Convertible, the amp for the 4 headrest speakers is behind the seats where the spare tire is located. The amp for the two door speakers is underneath where the steering wheel is behind the front left speaker. You don’t even want to know how long it took me to find it. The two front speakers plug directly into the stereo. Oh and i have found that I can put a quite large sub-woofer in the back after moving the spare tire to the trunk. It’s pretty sweet.
Koenrad, thanks for the 1988 Mazda RX7 amplifier location information contribution!
I have a factory installed Pioneer CD/Cassette/AMFM stereo in my 1988 RX7 convertible. I believe the motor for the CD and Cassette player must be one. Both have stopped working at the same time. Anyone else had this problem? Also, the passenger side door panel speaker is distorting at low frequency. I believe it may me loose. Has anyone taken the door panel off to deal with a speaker issue? Does the speaker cover in the door panel come off without removing the entire door panel?
John, I have a 1988 Mazda RX7 Convertible as well. I don’t know if you’re still wondering about this, but last week I removed my driver’s side door panel to fix my window. The speaker cover in the door panel does not come off, you will need to remove the entire door panel to touch the speaker. If I were you, I’d remove it and check that the membrane is not wrinkled over your speaker.
MacKinley, thanks for the 1988 Mazda RX7 speaker replacement information contribution!