1991 Cadillac Brougham Stereo Wiring Information
Radio Battery Constant 12v+ Wire: Orange
Radio Accessory Switched 12v+ Wire: Yellow
Radio Ground Wire: Black
Radio Illumination Wire: Gray
Stereo Dimmer Wire: Brown
Stereo Antenna Trigger Wire: Pink
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue
1991 Cadillac Brougham Speaker Sizes
Audio Front Speakers Size: 4″ x 6″ Speakers
Audio Rear Speakers Size: 6″ x 9″ Speakers
The following information is currently not available:
Stereo Amp Trigger Wire
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what about the door speakers you have covered dash and rear deck speakers My Cadillac has door speakers. am not sure if all Cadillac`s have them maybe only the ones that have steel rims and sun/moon roof options and 5.7 liter engine package