I have a 1991 GT. It has the factory radio with EQ installed.
I have purchased a wiring harness kit (FM-K504), but only the power side plug matches up with what's under the dash. The speaker wire plug will not fit. I'm at a loss so far.
I referenced this wiring diagram information, and couldn't locate all the colors mentioned:
Radio (Modified Cars, Car Radio Wiring Diagrams, Car Alarm Wiring Diagrams, Car Light Bulb Size Guides - ModifiedLife.com)
1991 Ford Mustang Car Stereo Wiring Guide
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: Orange/Blue
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4″
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Light Blue/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Green/Orange
Car Audio Rear Speakers Size: 5″ x 7″
Car Audio Rear Speakers Location: Side Panels
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
I know for sure he EQ did not come stock in this car. I'm wondering if there exists a harness that will plug directly into the smaller plug.
Please see pictures located here --> Mustang Radio Install - a set on Flickr
I have purchased a wiring harness kit (FM-K504), but only the power side plug matches up with what's under the dash. The speaker wire plug will not fit. I'm at a loss so far.
I referenced this wiring diagram information, and couldn't locate all the colors mentioned:
Radio (Modified Cars, Car Radio Wiring Diagrams, Car Alarm Wiring Diagrams, Car Light Bulb Size Guides - ModifiedLife.com)
1991 Ford Mustang Car Stereo Wiring Guide
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: Orange/Blue
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4″
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Light Blue/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Green/Orange
Car Audio Rear Speakers Size: 5″ x 7″
Car Audio Rear Speakers Location: Side Panels
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
I know for sure he EQ did not come stock in this car. I'm wondering if there exists a harness that will plug directly into the smaller plug.
Please see pictures located here --> Mustang Radio Install - a set on Flickr