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2004 Cadillac CTS Radio Wire Harness Diagram

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Question: Where can I find a 2004 Cadillac CTS stereo wiring diagram? What are the 2004 Cadillac CTS radio wiring harness colors?

If you’re looking to change the radio in your 2004 Cadillac CTS or troubleshoot why your car radio stopped working, we’re here to help!

Our comprehensive 2004 Cadillac CTS stereo wiring diagram shows you all the stereo wire harness colors, car speaker wiring colors and car speaker sizes. Use our 2004 Cadillac CTS stereo wiring guide to help you with your car radio and installation needs.

2004 Cadillac CTS Stereo Wiring Diagram

This 2004 Cadillac CTS stereo wiring chart shows you all the 2004 Cadillac CTS stereo wire colors and their functions. Utilize this guide to help you with a car radio install or help with a car radio troubleshoot. If you don’t see the car radio wiring information you’re looking for, please feel free to ask your question at the bottom of this page.

Application Radio Wire Color
Car Radio Battery Wire (Constant Power 12v+) Red/White
Car Radio Accessory Wire (Switched Power 12v+) Run a wire to the fuse box or ignition switch harness for switched power.
Car Radio Ground Wire Chassis
arrow Use a Car Radio Wiring Harness and Car Radio Dash Kit for an Easy Install!
Car Radio Illumination Wire N/A
Car Stereo Dimmer Wire N/A
Car Radio Antenna Trigger Wire N/A
Car Radio Amp Turn-On Trigger Wire Purple
Car Radio Amp Mute Wire N/A
Car Radio Amplifier Location Car amplifier is located on the left side of the trunk.
arrow Use an Amp Integration Harness to Connect Your Factory Amplifier to an aftermarket radio.

2004 Cadillac CTS Speaker Wiring Guide

This 2004 Cadillac CTS speaker wiring chart shows you every speaker wire color and the speaker wire location. Use this 2004 Cadillac CTS speaker wiring guide to help you with a speaker replacement or speaker upgrade. If the car speaker wiring information you’re searching for is not listed, please don’t hesitate to ask for it at the bottom of this page.

Application Speaker Wire Color
Front Center Speaker Positive Wire (+) N/A
Front Center Speaker Negative Wire (-) N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Left Tweeter Positive Wire (+) N/A
Front Left Tweeter Negative Wire (-) N/A
Front Right Tweeter Positive Wire (+) N/A
Front Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Left Speaker Positive Wire (+) Tan
Front Left Speaker Negative Wire (-) Yellow
Front Right Speaker Positive Wire (+) Light Green
Front Right Speaker Negative Wire (-) Purple
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Left Tweeter Positive Wire (+) N/A
Rear Left Tweeter Negative Wire (-) N/A
Rear Right Tweeter Positive Wire (+) N/A
Rear Right Tweeter Negative Wire (-) N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Rear Left Speaker Positive Wire (+) White
Rear Left Speaker Negative Wire (-) Tan
Rear Right Speaker Positive Wire (+) Orange
Rear Right Speaker Negative Wire (-) Tan
arrow Upgrade your Subwoofer for deeper lows!
Subwoofer Positive Wire (+) N/A
Subwoofer Negative Wire (-) N/A

2004 Cadillac CTS Speaker Sizes and Location

This 2004 Cadillac CTS speaker size chart shows your speaker measurements and speaker locations. Use this chart to see what speaker fits in your 2004 Cadillac CTS.

Application Speaker Size and Location
Front Center Speaker Size N/A
Front Center Speaker Depth N/A
Front Center Speaker Location N/A
arrow Upgrade your Center Speakers for awesome sound!
Front Tweeter Size N/A
Front Tweeter Depth N/A
Front Tweeter Location N/A
arrow Upgrade your Tweeters for cleaner audio highs!
Front Speaker Size 6.5″ Speakers
Front Speaker Depth 3.2″ Depth
Front Speaker Location Front Dash
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Tweeter Size N/A
Rear Tweeter Depth N/A
Rear Tweeter Location N/A
arrow Use a Speaker Wire Harness for easy Speaker Installation!
Rear Speaker Size 6.5″ Speakers
Rear Speaker Depth 4″ Depth
Rear Speaker Location Rear Deck
arrow Upgrade your Subwoofer for deeper lows!
Car Subwoofer Speaker Size N/A
Car Subwoofer Speaker Depth N/A
Car Subwoofer Speaker Location N/A

Questions and Answers

If you have any questions about your 2004 Cadillac CTS radio installation, please don’t hesitate to post them at the bottom of this page. We’re committed to finding the answers you need, and members of the Modified Life community may also provide valuable insights into the car stereo information you’re looking for. Don’t hesitate to ask your car audio question; it could benefit others seeking the same answers!

Contribute

Do you want to contribute 2004 Cadillac CTS stereo wire diagram information to benefit the Modified Life community? Feel free to share your insights by posting at the bottom of this page. We will gather any additional information presented below by our community, verify it, and incorporate it into the car radio wiring guide above for easy reference. We are consistently adding new information to improve and update this car stereo wiring guide as it becomes available. We appreciate your contribution in advance!

2 thoughts on “2004 Cadillac CTS Radio Wire Harness Diagram”

  1. Dimitriy, most late model vehicles do not have RCA outputs on the factory radio to feed an audio signal to your aftermarket amplifier. You would have to install a line out converter to supply an audio output. Here is the Line-Out Converter you need:

    Scosche 2-Channel Speaker to RCA Line Out Converter

    When splicing in the RCA Line Out Converter, tap your factory rear speaker wires to get a full range audio source. We suggest you invest in some solid wire taps that wont come loose. These wire tap connectors will allow you to tap into wires without cutting and installs in seconds by hand with no crimping or tools required. If you install a line out converter, your rear speakers will still work properly. If you’ve never installed car audio before, we advise you to take your car to an experienced mobile audio installer. Hope this helps. Good luck with your 2006 Cadillac CTS amplifier installation.

  2. i have 2006 cadillac cts v.6 2.8 …im trying to install 1000w amp and 15 subwoofer ., my Q is do i need an rca adapter or my radio or amp already have outlet for those.? whats the best way for me to make that installation.?

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