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1991 Cadillac Deville Sedan Radio Wiring Diagram

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Whether your an expert Cadillac Deville Sedan mobile electronics installer, Cadillac Deville Sedan fanatic, or a novice Cadillac Deville Sedan enthusiast with a 1991 Cadillac Deville Sedan, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 1991 Cadillac Deville Sedan 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 1991 Cadillac Deville Sedan headlight bulb size you need for your low beam or high beam and save time. Also, find your other car light bulb sizes including your fog light, reverse light, turn signal, brake light and more. It’s that easy!

The Modified Life staff has taken all its Cadillac Deville Sedan car radio wiring diagrams, Cadillac Deville Sedan car audio wiring diagrams, Cadillac Deville Sedan car stereo wiring diagrams, Cadillac Deville Sedan car radio wiring schematics, Cadillac Deville Sedan 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 1991 Cadillac Deville Sedan part or component.

Feel free to use any Cadillac Deville Sedan 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 Cadillac Deville Sedan wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1991 Cadillac Deville Sedan.

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1991 Cadillac Deville Sedan Car Radio Wiring Diagram

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 4″ x 6″ Speakers
Car Audio Front Speakers Location: Dash
Front Left Speaker Positive Wire (+): Tan
Front Left Speaker Negative Wire (-): Gray
Front Right Speaker Positive Wire (+): Light Green
Front Right Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 6″ x 9″ Speakers
Car Audio Rear Speakers Location: Rear Deck
Rear Left Speaker Positive Wire (+): Brown
Rear Left Speaker Negative Wire (-): Yellow
Rear Right Speaker Positive Wire (+): Dark Blue
Rear Right Speaker Negative Wire (-): Light Blue

10 thoughts on “1991 Cadillac Deville Sedan Radio Wiring Diagram”

  1. Thank you for your diagram for a 1911 Cadillac Sedan De Ville. I have one question, I have speakers in the door and in the dash are they on the same wire? Anyone? Scott Lipsett

  2. Roger, you will have to source a 1991 Cadillac Deville factory stereo either at your local Cadillac dealer or at your local junkyard. Hope this helps. Good luck with your 1991 Cadillac Deville stock radio search.

  3. Where can I buy an original factory radio for a 1991 Cadillac Deville radio? I prefer new even if its from a Dealer but guaranteed used will work if necessary.

  4. Since i got my 91′ Cadillac deville, my radio hasn’t worked, the only thing that works is the clock and i’ve checked all the fuses multiple times, any ideas?

  5. I just bought a 91 Cadillac deville. It has been storage for 3 years before I bought it. The speakers have this buzz and only on the right side of the car. Even when you turn the radio all the way down you can still heard the buzz in the speakers on the right side. Just wondering if the radio is the problem or the right side speakers in the car?

  6. Ross, you may have mixed up the battery constant and accessory switched wires. The battery constant always sends power to the radio to save your radio stations and other audio settings. The accessory switched wire sends power to your radio only when the key is in the ignition and your car is on. Check your wiring and make sure the correct radio wires are hooked up to the correct wires on your factory harness. Hope this helps. Good luck.

  7. my radio and clock both work but once i shut the car off and turn it back on my radio goes back to a.m and the clock resets itself to the wrong time. ive checked fuses but dont know what to be looking for. can anyone help.

  8. 1991 deVille radio wiring …trouble shooting clock works but radio does not any suggestions and tape cassette does’nt eithr like no power to it andy

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