2003 Cadillac Deville Car Audio Wiring Diagram

Whether your an expert Cadillac Deville mobile electronics installer, Cadillac Deville fanatic, or a novice Cadillac Deville enthusiast with a 2003 Cadillac Deville, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2003 Cadillac Deville 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 2003 Cadillac Deville.

The Modified Life staff has taken all its Cadillac Deville car radio wiring diagrams, Cadillac Deville car audio wiring diagrams, Cadillac Deville car stereo wiring diagrams, Cadillac Deville car radio wiring schematics, Cadillac Deville 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 2003 Cadillac Deville part or component.

Feel free to use any Cadillac Deville 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 wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2003 Cadillac Deville.

Questions

If you have any questions pertaining to the audio system in the 2003 Cadillac Deville, 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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Adding More Information

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2003 Cadillac Deville Car Audio 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: N/A
Car Audio Front Speakers Location: N/A
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
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
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

14 Comments

  • Reply Andy July 8, 2009 at 4:34 am

    hey i was wondering if anyone had step by step derections on taking out the stock radio on a 2003 Cadillac DaVille

  • Reply rudy March 11, 2011 at 2:31 pm

    locate the two metal clips on the sides of the stereo and push them in, those clips will release the deck!!!

  • Reply ModifiedLife March 15, 2011 at 1:22 am

    Rudy, thanks for the 2003 Cadillac Deville stereo removal information contribution.

  • Reply Duane March 26, 2011 at 6:25 pm

    what size is the back center speaker???

  • Reply Evan June 24, 2011 at 1:51 am

    The back sub speaker is a 9.5″ or so I heard. Apparently the hole accepts up to 11.5″ speaker…still haven’t found the rms power, but I believe it is a DVC sub.

  • Reply ModifiedLife June 30, 2011 at 3:10 pm

    Evan, thanks for the 2003 Cadillac Deville subwoofer size information contribution.

  • Reply reggie July 10, 2011 at 8:15 pm

    You will need GMOS-06 Wire Harness to keep your onstar and all your chimes.

  • Reply ModifiedLife July 18, 2011 at 4:05 pm

    Reggie, thanks for the 2003 Cadillac Deville stereo wiring information contribution!

  • Reply frenchie July 20, 2011 at 1:55 am

    Where would i find the remote wire for the 2003 cadillac deville because im trying to install an aftermarket sub and sub with the original radio?

  • Reply ModifiedLife July 21, 2011 at 6:34 pm

    Frenchie, technically you could connect your 2003 Cadillac Deville amplifier turn on wire to the radio switched 12v+ wire. That way your amplifier is on whenever your 2003 Cadillac Deville is on and off whenever your 2003 Cadillac Deville is off. Just make sure to run an in-line fuse holder with a 1-amp fuse on the amplifier turn on wire. Hope this helps. Good luck with your 2003 Cadillac Deville amplifier and subwoofer installation.

  • Reply grant July 22, 2011 at 10:33 am

    what size speakers come stock in the 2003 cadillac deville?

  • Reply ModifiedLife July 25, 2011 at 9:19 pm

    Grant, here are your 2003 Cadillac Deville speaker sizes:

    Car Audio Tweeter Speaker Size: 1″ Tweeters
    Car Audio Tweeter Speaker Depth: 1″
    Car Audio Tweeter Speaker Location: N/A

    Car Audio Front Speakers Size: 6 1/2″ Speakers
    Car Audio Front Speakers Depth: 2 1/2″
    Car Audio Front Speakers Location: Doors

    Car Audio Rear Speakers Size: 5 1/4″ Speakers
    Car Audio Rear Speakers Depth: 4″
    Car Audio Rear Speakers Location: N/A

    Car Audio Rear Speakers Size: 6″ x 9″ Speakers
    Car Audio Rear Speakers Depth: 5″
    Car Audio Rear Speakers Location: N/A

    Car Subwoofer Speaker Size: 8″ Subwoofer
    Car Subwoofer Rear Speakers Depth: 4″
    Car Subwoofer Rear Speakers Location: N/A

    Hope this helps. Good luck with your 2003 Cadillac Deville speaker installation.

  • Reply Jeff Paletz July 27, 2011 at 10:17 pm

    Hi, My 2003 Cadillac DTS has the AM-FM GPS radio unit which is completely. I’ve removed the plastic frame from around the radio and AC control unit but can’t figure out how to remove the radio. Can anyone please explain how to do this? Thanks.

  • Reply Shaune Gill August 13, 2011 at 12:59 am

    anyone know what the wire colors are the steering wheel control wires in a 2003 cadillac deville?

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