1988 Mazda RX7 Car Audio Wiring Diagram

Whether your an expert Mazda RX7 mobile electronics installer, Mazda RX7 fanatic, or a novice Mazda RX7 enthusiast with a 1988 Mazda RX7, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1988 Mazda RX7 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 1988 Mazda RX7.

The Modified Life staff has taken all its Mazda RX7 car radio wiring diagrams, Mazda RX7 car audio wiring diagrams, Mazda RX7 car stereo wiring diagrams, Mazda RX7 car radio wiring schematics, Mazda RX7 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 1988 Mazda RX7 part or component.

Feel free to use any Mazda RX7 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 Mazda RX7 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1988 Mazda RX7.


If you have any questions pertaining to the audio system in the 1988 Mazda RX7, 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.

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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.

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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.

1988 Mazda RX7 Car Audio Wiring Diagram

Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Red/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/White
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: Blue/Yellow
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″ Speakers
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Blue/Red
Left Front Speaker Negative Wire (-): Blue/Yellow
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): Blue/White
Car Audio Rear Speakers Size: 6 1/2″ Speakers
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green

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  • Reply Koenrad February 22, 2011 at 5:30 pm

    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.

  • Reply ModifiedLife February 28, 2011 at 2:49 pm

    Koenrad, thanks for the 1988 Mazda RX7 amplifier location information contribution!

  • Reply John Cecchinelli April 21, 2011 at 9:28 pm

    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?

  • Reply MacKinley Smith August 2, 2012 at 2:06 pm

    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.

  • Reply ModifiedLife August 15, 2012 at 3:29 pm

    MacKinley, thanks for the 1988 Mazda RX7 speaker replacement information contribution!

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