Identification of original wiring to car radio/stereo

I don't think your radio has anything to do with them not working, check you fuses.

All cars with 4 speakers have 8 speaker wires (4 positive and 4 negative). The colors of the wires for these two cars are not the same. The only way to know which wire goes where is to get wire diagrams for both cars. Before cutting up your wire harness, check that the radio you're installing will bolt into your car and fit. Just swapping the mounting bracket may not work.

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1986 Toyota Celica Car Stereo Wiring Information
Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: Black/Red
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4?
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Purple
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: 5 1/4?
Car Audio Rear Speakers Location: Side Shelves
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White

1988 Honda Civic Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: White/Blue
Radio Switched Ignition 12V+ Wire: Yellow/Red
Radio Ground Wire: Black
Radio Illumination Dimmer Wire: Red/Black
Radio Antenna Trigger Wire: N/A
Radio Amplifier Turn On Wire: N/A
Front Speaker Size: N/A
Front Speaker Location: N/A
Left Front Speaker Wire (+): Blue/Green
Left Front Speaker Wire (-): Gray/Black
Right Front Speaker Wire (+): Red/Green
Right Front Speaker Wire (-): Brown/Black
Rear Speaker Size: N/A
Rear Speaker Location: N/A
Left Rear Speaker Wire (+): Blue/Yellow
Left Rear Speaker Wire (-): Gray/White
Right Rear Speaker Wire (+): Red/Yellow
Right Rear Speaker Wire (-): Brown/White

Here can find the Stereo Wire Harness OEM Honda Civic 86 87 88 89 90 (car radio wiring installation parts)

Hope help with this.

Right here!
1986 Ford Ranger Car Radio Wiring Chart
Car Radio Battery Constant 12v+ Wire: Green/Yellow
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Blue/Red
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Black/White
Car Audio Rear Speakers Size: 5′ x 7′
Car Audio Rear Speakers Location: Rear Corners
Left Rear Speaker Positive Wire (+): Pink/Green
Left Rear Speaker Negative Wire (-): Pink/Blue
Right Rear Speaker Positive Wire (+): Pink/Blue
Right Rear Speaker Negative Wire (-): Green/Orange

email me at [email protected]. I have diagrams I just can't send them through here. Which radio did you have?

1986 Toyota MR2 Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Violet
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White


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I hqave taken the time to look this up, please take a few seconds rate the solution, thanks.
1995 Honda Civic Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Blue/White
Car Radio Switched 12V+ Wire: Yellow/Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Radio Dimmer Wire: N/A
Car Radio Power Antenna Trigger Wire: N/A
Car Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 6 1/2′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Blue/Green
Left Front Speaker Wire (-): Gray/Black
Right Front Speaker Wire (+): Red/Green
Right Front Speaker Wire (-): Brown/Black
Rear Speakers Size: 6 1/2′
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Blue/Yellow
Left Rear Speaker Wire (-): Gray/White
Right Rear Speaker Wire (+): Red/Yellow
Right Rear Speaker Wire (-): Brown/White

Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Pink
Left Front Speaker Negative Wire (-): Purple
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): Blue
Car Audio Rear Speakers Size: 5 1/4′
Car Audio Rear Speakers Location: Side Panels
Left Rear Speaker Positive Wire (+): Black
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Red
Right Rear Speaker Negative Wire (-): White

Hi,

For 2008 Honda Civic, it would be as shown below. For all other years, you may want to try looking for your specific year here where the information was originally posted.

2008 Honda Civic Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: White
Car Radio Accessory Switched 12v+ Wire: Violet
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Stereo Dimmer Wire: Red
Car Stereo Antenna Trigger Wire: Gray
Car Stereo Amp Trigger Wire: Light Blue
Car Stereo Amplifier Location: Located in the front of the center console under the center of the dash.
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Light Green
Left Front Speaker Negative Wire (-): Pink
Right Front Speaker Positive Wire (+): Gray
Right Front Speaker Negative Wire (-): Brown
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Yellow
Left Rear Speaker Negative Wire (-): Brown
Right Rear Speaker Positive Wire (+): Blue
Right Rear Speaker Negative Wire (-): Orange

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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