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2009 Cadillac STS

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Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Stereos & Install Accessories for 2009 Cadillac STS

Shop car stereos and installation gear that fits your Cadillac. Most stereos include free or discounted STS dash kits, wiring harnesses and/or an antenna adapter. Look at the details for each stereo to see how much you'll get included as a bonus!
All the stereos we offer

All In-Dash Stereo Receivers

All of our aftermarket stereos that fit your STS.

Stereo install accessories

Aftermarket Stereo Installation Accessories

Dash Kits, Wiring Harnesses and Antenna Adapters to install a new stereo.

Apple CarPlay Stereos

Apple CarPlay Stereos

Apple CarPlay stereos for your Cadillac STS

Android Auto Stereos

Android Auto Stereos

Android Auto stereos for your Cadillac STS

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Key Features
These are the key features of the car stereo. If you select more than one feature, then you will view stereos that have ALL features selected. For example, selecting Apple CarPlay AND USB input will result in stereos that have both features. The Floating Touchscreen feature is the "Tesla" style large screen that so many vehicles are including now. We have aftermarket "floating" large "Tesla-esque" screens for your vehicle and they're only a click away.
Radio Type

CD Receivers play CD's. They may also have USB and auxiliary inputs, SD card slots, bluetooth for Hands-free calling and audio streaming.

DVD Receivers play music and videos from DVD and CD discs, They may also have USB and auxiliary inputs, SD card slots, and bluetooth for Hands-free calling and audio streaming.

Digital Media Receivers, commonly referred to as "mech-less" receivers, Digital Media receivers do not play CD's. To play music, they rely on music stored on a USB drive, SD card, and built-in Bluetooth.

Digital Multimedia Receivers are simply Digital Media Receivers with the ability to play video from your phone or storage device such as a USB drive or SD card.

GPS Navigation Receivers typically have all the features of a DVD or Digital Multimedia Receiver but also have built-in GPS that doesn't require the use of a smartphone.
iPhone Control
Head units are equipped with different technology that allows a variety of smartphone integration features. Some stereos are equipped with more features than others, here you will find which iPod/iPhone features this head unit has.
Android Control
Head units are equipped with different technology that allows a variety of smartphone integration features. Some stereos are equipped with more features than others, here you will find which Android features this head unit has.
Receiver Size

Single DIN: 1 DIN dimensions will work with all single DIN installation kits we have to offer. Single DIN radios are the most common size for after-market stereos.

Single DIN slot with flip-out screen: The DIN stereo includes a retractable, flip-out screen. Before purchasing, make measurements to be sure there is no interference with dash accessories such as A/C vents or shift levers.

Single DIN slot with a larger face: Standard single DIN size, but the display is larger then the standard single DIN size. Due to the nature of the larger face, problems may arise when installing in particular vehicles. These stereos are great for single DIN slots where you want a larger screen.

1.5 DIN: This size is very uncommon in vehicles, however this size opening is most commonly found in Chrysler and Chevrolet vehicles.

Double DIN: Approximately 4-inches in height, this size is becoming more common every year. Prior to 2000, this size was typically only found in Japanese vehicles such as those made by Honda or Toyota. Now, it is becoming more popular for many vehicles to be fit with a Double DIN opening.
Screen Size
This is the size of the monitor on the unit. It is measured diagonally and in inches. The bigger the number the larger the screen.
Bluetooth Features
Navigation Features
Volume Control Type
Inputs
These inputs enable the unit to receive an audio or video signal from a separate source. There are many different types of connections and ways to accomplish this. Most common are RCA Composite cables and 3.5mm mini-jack plugs.

RCA Composite Inputs
These are your typical red, white, and yellow RCA composite cables that are common among devices with audio and video inputs. The red and white cables are dedicated for audio. The red cable is for the right channel and the white is for the left channel. The yellow cable is specifically for the video signal. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.

3.5mm
This is commonly referred to as a mini-jack or a headphone jack. It is a 3.5mm plug that transfers audio only. There is a right and left audio channel on the plug which allows for stereo sound playback.

3.5mm AV Input
These plugs look similar to the common 3.5mm mini-jack, however they carry a third channel dedicated for video.

Optional
This means that an auxiliary input is possible, but only with the use of an optional accessory. These optional adapters will sometimes use the CD Changer port or other port on the back of a unit that might restrict the use of other expandability features. These accessories are typically sold separately.
Outputs
Audio/Video outputs are typically used to connect an overhead monitor to an aftermarket stereo. This is the number of A/V outputs that the item has. These outputs are usually RCA Composite cables.

RCA Composite Outputs
These are your typical red, white, and yellow RCA composite cables that are common among devices with audio and video inputs. The red and white cables are dedicated for audio. The red cable is for the right channel and the white is for the left channel. The yellow cable is specifically for the video signal. Because this type of auxiliary cable contains 2 channels of audio, it will support stereo sound.
Preamp RCA Outputs
RCA outputs, commonly known as preamp outputs, allow you to connect one or sometimes multiple external amplifiers. An in-dash receiver will commonly have one, two or three sets of RCA outputs that can be used to connect external amplifiers and other components. One pair of RCA outputs will typically provide a full range signal that can be used for most subwoofer or speaker amplifiers. Two pairs of RCA outputs can typically be configured as four full range signals, or also as two full range and two subwoofer signals. Three sets of RCA outputs will almost always produce four speaker signals and two subwoofer signals for use with multiple amplifiers.
Preamp Voltage
The preamp output rating is measured in volts (V). The higher the rating, the stronger the signal. This results in less unwanted noise being picked up.
Music File Playback Type
Memory Card Slot
Whether or not the receiver has a built-in input for removable memory cards such as SD (Secure Digital) cards or MMC (Multimedia) cards.
Steering Wheel Control Compatible
In order to retain a vehicle's factory steering wheel remote controls, a wired-remote input is needed on the aftermarket stereo.

If "Yes", then the aftermarket stereo is compatible with steering wheel remote controls. If an additional accessory is required for the steering wheel controls to work properly, a compatible piece will be listed.
Wireless Remote
Allows control of specific features and functions from a remote control. Typically they are used to prevent button wear on your radio, or to allow easier navigation of menus.
Button Color
Refers to the color of the physical buttons on the unit.
Condition
Availability
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Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

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Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.75" Capacitive Touchscreen Display Display
• Wired Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Correction
• SiriusXM Satellite Radio Ready
• iDataLink Maestro compatible

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Sony XAV-AX3200

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, WebLink, Apple CarPlay, and Android Auto (SiriusXM Ready)

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Sony XAV-AX3200

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, WebLink, Apple CarPlay, and Android Auto (SiriusXM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.95" TFT Active Matrix Display
• Apple CarPlay and Android Auto Compatible
• Mirror Android or iOS device via WebLink Cast
• 3 sets of 2 volts preamp outputs
• 10-Band Graphic Equalizer
• SiriusXM Satellite Radio Ready

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• Double DIN Bluetooth Digital Multimedia Receiver
• 6.95" TFT Active Matrix Display
• Apple CarPlay and Android Auto Compatible
• Mirror Android or iOS device via WebLink Cast
• 3 sets of 2 volts preamp outputs
• 10-Band Graphic Equalizer
• SiriusXM Satellite Radio Ready

Pioneer DMH-WT8000NEX

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, Alexa and Dolby Atmos Feature (SiriusXM and iDataLink Maestro Ready)

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Pioneer DMH-WT8000NEX

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, Alexa and Dolby Atmos Feature (SiriusXM and iDataLink Maestro Ready)

• Single DIN Bluetooth Digital Multimedia Receiver
• SPHERA 10.1" Capacitive Touchscreen Display
• Wireless Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13 Band Customizable Graphic Equalizer
• SiriusXM Satellite Radio, iDataLink Maestro, and Axxess Compatible
• Features Dolby Atmos and HD radio

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• Single DIN Bluetooth Digital Multimedia Receiver
• SPHERA 10.1" Capacitive Touchscreen Display
• Wireless Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13 Band Customizable Graphic Equalizer
• SiriusXM Satellite Radio, iDataLink Maestro, and Axxess Compatible
• Features Dolby Atmos and HD radio

Sony MEX-N5300BT

Single DIN CD Receiver with Bluetooth and Built-in NFC

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Sony MEX-N5300BT

Single DIN CD Receiver with Bluetooth and Built-in NFC

• Single DIN Bluetooth CD Receiver
• LCD Text Display
• Compatible with iPhone or Android via Bluetooth
• 3 sets of 4 volts preamp outputs
• 10-Band Digital Equalizer
• SiriusXM Satellite Radio Ready
• Voice control for iPhone and Android
• Tap to connect wirelessly via built-in NFC

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Kenwood KDC-BT382U

Single DIN CD Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

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Kenwood KDC-BT382U

Single DIN CD Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

• Single DIN In-Dash Bluetooth CD Receiver
• LCD Text Display
• SiriusXM ready and Amazon Alexa compatible
• iPhone, iPod, and Android compatible
• 3 sets of 2.5 volts preamp outputs
• 13-Band Equalizer with Digital Time Alignment

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Kenwood eXcelon KDC-X705

Single DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

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Kenwood eXcelon KDC-X705

Single DIN CD Multimedia Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

• Single DIN Bluetooth Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

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Pioneer MVH-S622BS

Double DIN Digital Media Receiver with Bluetooth, Amazon Alexa and SiriusXM Ready

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Pioneer MVH-S622BS

Double DIN Digital Media Receiver with Bluetooth, Amazon Alexa and SiriusXM Ready

• Double DIN Bluetooth Digital Media
• Digital LED Backlit Display
• Convenient Siri Eyes Free functionality
• 3 sets of 4 volts preamp outputs
• 13-Band Equalizer
• SiriusXM Satellite Radio Ready
• Built-in Amazon Alexa

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Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

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Dual XRM59BT

Single DIN Digital Media Receiver with Bluetooth, USB and Aux

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display Display
• 1 set of 2 volts preamp outputs
• 2-Band Equalizer with 4 Presets

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Pioneer DEH-S4220BT

Single DIN CD Receiver with Bluetooth and Amazon Alexa

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Pioneer DEH-S4220BT

Single DIN CD Receiver with Bluetooth and Amazon Alexa

• Single DIN Bluetooth CD Media Receiver
• Digital LED Backlit Display
• 2 sets of 4 volts preamp outputs
• 13-Band Equalizer
• Detachable face plate
• Built-in Alexa

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Sony XAV-AX6000

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto (Sirius XM Ready)

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Sony XAV-AX6000

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto (Sirius XM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver with USB and HDMI
• 6.95" TFT Active Matrix Display
• Wireless Apple CarPlay and Android Auto
• 3 sets of 5 volts preamp outputs
• 14-Band Equalizer
• SiriusXM Satellite Radio Ready
• iDatalink Maestro compatible

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Kenwood DMX4710S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM & iDatalink Maestro Ready)

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Kenwood DMX4710S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM & iDatalink Maestro Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.8" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 2.5 volts preamp outputs
• 13 Band Graphic Equalizer
• SiriusXM Satellite Radio Ready
• iDatalink Maestro Ready

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Alpine ILX-W770M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, SiriusXM Ready, and iDataLink Maestro Ready

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Alpine ILX-W770M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, SiriusXM Ready, and iDataLink Maestro Ready

• Double DIN In-Dash Bluetooth Digital Multimedia Receiver
• 6.75" Capacitive Touchscreen Display
• Wireless Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer
• SiriusXM Satellite Radio Ready
• iDataLink Maestro compatible

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Kenwood KMM-BT732HD

Single DIN Digital Media Bluetooth Receiver with HD Radio

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Kenwood KMM-BT732HD

Single DIN Digital Media Bluetooth Receiver with HD Radio

• Single DIN Bluetooth Digital Media Digital Multimedia Receiver
• LCD Text Display
• Three sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

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JVC KW-V660BT

6.8" Double DIN CD/DVD Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

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JVC KW-V660BT

6.8" Double DIN CD/DVD Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

• Double DIN Bluetooth CD/DVD Multimedia Receiver
• 6.8" Capacitive Touchscreen Display Display
• Apple CarPlay and Android Auto Compatible
• Screen mirroring features for iPhone and Android
• 3 sets of 2 volts preamp outputs
• 13-Band Graphic Equalizer with 7 Selectable Presets
• SiriusXM Satellite Radio Ready

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Kenwood DPX305MBT

Double DIN Digital Media Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

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Kenwood DPX305MBT

Double DIN Digital Media Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• LCD Text Display
• Adjustable 3-zone illumination
• 3 sets of 2.5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready
• Short chassis for flexible installation

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Alpine iLX-507

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wireless Android Auto (SiriusXM and iDataLink Maestro Ready)

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Alpine iLX-507

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wireless Android Auto (SiriusXM and iDataLink Maestro Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 7" TFT Active Matrix Display
• Wired and wireless Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Parametric Equalizer
• SiriusXM Satellite Radio Ready
• iDataLink Maestro Ready
• Built-in dual band (2.4 GHz / 5 GHz) Wi-Fi
• High-resolution audio playback

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Kenwood KMM-BT332U

Single DIN Digital Media Receiver with Bluetooth (Built-in Amazon Alexa)

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Kenwood KMM-BT332U

Single DIN Digital Media Receiver with Bluetooth (Built-in Amazon Alexa)

• Single DIN Bluetooth Digital Media Receiver
• LCD Text Display
• 3 sets of 2.5 volts preamp outputs
• 13-Band Equalizer
• Kenwood Music Mix allows up to 5 Bluetooth devices
• Short chassis design

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Dual DM724

7″ Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

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Dual DM724

7″ Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

• Double DIN Bluetooth Digital Multimedia Receiver
• 7" TFT Active Matrix Display
• iPlug Smart remote control app
• 1 set of 2 volts preamp outputs
• Voice activation button for Siri/Google Assistant
• 7 Equalizer Presets

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Kenwood DMX129BT

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

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Kenwood DMX129BT

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.75" Capacitive Touchscreen Display
• 3 sets of 2 volts preamp outputs
• 13-Band Graphic Equalizer
• Shallow chassis (2-15/16" deep)

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Jensen CMR2724

7" Double DIN Touch Screen Digital Multimedia Receiver with Bluetooth

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Jensen CMR2724

7" Double DIN Touch Screen Digital Multimedia Receiver with Bluetooth

• Double DIN Bluetooth Digital Multimedia Receiver
• 7" TFT-LCD Display
• iPhone and Android compatible via Bluetooth
• 3 sets of preamp outputs
• 7 Band Graphic Equalizer
• Dual (front/rear view) camera input
• Bluetooth voice activation button for Siri/Google Assistant

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    Q: Can I upgrade or change the Stereo Receivers in 2009 Cadillac STS?

    A: Yes this page includes all the best Stereo Receivers that work in your STS.

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    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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