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2003 Cadillac DeVille

Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Universal-Fit Audio for 2003 Cadillac DeVille

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

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Rockford Fosgate Power T1000-1bdCP

1000W RMS Class BD Power Series Monoblock Car Amplifier

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1000W RMS Class BD Power Series Monoblock Car Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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Available Offers (2) for Rockford Fosgate Power T1000-1bdCP
FREE NVX Amp Kit at Checkout!
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Used from: $560.99

JL Audio RD1000/1

1000W RMS Class D RD Series Monoblock Car Amplifier

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1000W RMS Class D RD Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Available Offers (2) for JL Audio RD1000/1
FREE NVX Amp Kit at Checkout!
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Used from: $492.99

NVX XWS1675

75 ft 16-Gauge EnvyFlex 100% Oxygen Free Copper (OFC) Speaker Wire (Blue/Gray)

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75 ft 16-Gauge EnvyFlex 100% Oxygen Free Copper (OFC) Speaker Wire (Blue/Gray)

• True Spec 16 gauge EnvyFlex Speaker Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue and Gray
• Twisted-pair technology eliminates noise

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List price $44.99
-22% $34.99

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Used from: $34.99

• True Spec 16 gauge EnvyFlex Speaker Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue and Gray
• Twisted-pair technology eliminates noise

Stinger SPT5124

PRO Series 4 AWG Spade Terminals w/ #8 Openings & ShocKrome Plating

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PRO Series 4 AWG Spade Terminals w/ #8 Openings & ShocKrome Plating

• Solid Brass allows for maximum power transfer
• 8 Gauge opening
• Crimp-on style
• Ideal for many car audio applications

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-37% $11.99

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• Solid Brass allows for maximum power transfer
• 8 Gauge opening
• Crimp-on style
• Ideal for many car audio applications

Diamond Audio M01SWT

200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Swivel Tweeters

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200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Swivel Tweeters

• 1" Pro-Audio Swivel Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

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$239.99

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• 1" Pro-Audio Swivel Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

Cobra ACXT645

Splashproof 2-Way Walkie Talkies with Built-in LED Flashlight

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Splashproof 2-Way Walkie Talkies with Built-in LED Flashlight

• 2-Way Walkie Talkies with LED Flashlight
• IPX4-rated splashproof and weather-resistant
• 22 Channels and 121 Privacy Codes
• 24/7 access to NOAA weather alerts
• Voice-Activated Transmission (VOX)
• Patented VibrAlert for incoming transmissions
• Built-In LED Flashlight

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List price $79.95
-25% $59.99

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• 2-Way Walkie Talkies with LED Flashlight
• IPX4-rated splashproof and weather-resistant
• 22 Channels and 121 Privacy Codes
• 24/7 access to NOAA weather alerts
• Voice-Activated Transmission (VOX)
• Patented VibrAlert for incoming transmissions
• Built-In LED Flashlight

Metra 89-30-0250

Universal DIN 1/4" Border Trim

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Universal DIN 1/4" Border Trim

• Universal DIN 1/4" Border Trim
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

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List price $7.99
-27% $5.81

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• Universal DIN 1/4" Border Trim
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

Limited time!

Alpine R2-W8D2

1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

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1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.6 dB

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List price $360.00
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-33% $239.95

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Sundown Audio 300A

300A ANL Fuses (Pack of 2)

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300A ANL Fuses (Pack of 2)

• Pack of 2 300-amp ANL Fuses
• Power Rating: 300A
• See-through windows
• High-temperature plastic casings
• Circuit protection and high conductivity
• Silver-plated connector blades

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-17% $7.99

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• Pack of 2 300-amp ANL Fuses
• Power Rating: 300A
• See-through windows
• High-temperature plastic casings
• Circuit protection and high conductivity
• Silver-plated connector blades

Limited time!

Encore WK-2 Two Window Roll-up Kit for Alarm/Remote Start Systems

Automatic window roll-up kit upon arming vehicle alarm/remote start

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Automatic window roll-up kit upon arming vehicle alarm/remote start

• Universal Vehicle Alarm/Remote Start Power Window Automation Kit
• Automatic Roll-up/down windows from your Alarm/Remote Start controller
• Two window Kit
• Intelligent safety sensor

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List price $79.99
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• Universal Vehicle Alarm/Remote Start Power Window Automation Kit
• Automatic Roll-up/down windows from your Alarm/Remote Start controller
• Two window Kit
• Intelligent safety sensor

Crimestopper SPLCD-32

2-Way 5-Button Keyless Entry Replacement LCD Remote

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2-Way 5-Button Keyless Entry Replacement LCD Remote

• 2-Way 5-Button Replacement LCD Remote
• Up to 3000 feet of range (0.56 miles)
• Replacement remote for SP-302

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-11% $79.99

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• 2-Way 5-Button Replacement LCD Remote
• Up to 3000 feet of range (0.56 miles)
• Replacement remote for SP-302

The Install Bay SR12

MDF 3/4" Spacer Rings for 12" Speakers (Single)

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MDF 3/4" Spacer Rings for 12" Speakers (Single)

• 12" Speaker Ring • Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

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• 12" Speaker Ring • Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

Sundown Audio SHNMD

220W Peak (110W RMS) 2” SH-Series 4-ohm Pro Audio Horn Tweeter (S-SHNMD)

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220W Peak (110W RMS) 2” SH-Series 4-ohm Pro Audio Horn Tweeter (S-SHNMD)

• Tweeters
• 220 watts Peak Each
• 110 watts RMS Each
• 4 ohm Impedance

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List price $239.99
-17% $199.99

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DS18 PRO-GRILL69MS/BK

Universal Shallow Mesh Grille for Most 6x9" Speakers (Black)

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Universal Shallow Mesh Grille for Most 6x9" Speakers (Black)

• 6x9" universal shallow mesh speaker grill
• Fits speakers and midranges
• Bolt-on easy installation
• Slim and shallow design
• Painted in high-gloss black
• Sold individually/per piece

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List price $25.99
-19% $20.95

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• 6x9" universal shallow mesh speaker grill
• Fits speakers and midranges
• Bolt-on easy installation
• Slim and shallow design
• Painted in high-gloss black
• Sold individually/per piece

The Install Bay SR10

MDF 3/4" Spacer Rings for 10" Speakers (Single)

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MDF 3/4" Spacer Rings for 10" Speakers (Single)

•10" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

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-12% $14.99

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•10" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

Scosche HookUp (I335)

3 ft. 3.5mm Auxiliary Audio Cable

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3 ft. 3.5mm Auxiliary Audio Cable

• 3.5mm Auxiliary Audio Cable
• Compatible with any device with a 3.5mm auxiliary input or output
• Female to female extension adapter included

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List price $14.99
-33% $9.99

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• 3.5mm Auxiliary Audio Cable
• Compatible with any device with a 3.5mm auxiliary input or output
• Female to female extension adapter included

Axxess AXCSD-6V

12V to 6V Step-Down Converter for Factory Backup Camera

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12V to 6V Step-Down Converter for Factory Backup Camera

• 12-volt to 6-volt step down converter
• Provides proper voltage for a 6V factory backup
• Includes a wiring harness with three wires

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List price $38.99
-10% $34.99

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• 12-volt to 6-volt step down converter
• Provides proper voltage for a 6V factory backup
• Includes a wiring harness with three wires

Axxess AXUSB-RAM1

USB, HDMI and Auxiliary Replacement Panel for 2015-up Vehicles from Chrysler, Dodge, and Jeep

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USB, HDMI and Auxiliary Replacement Panel for 2015-up Vehicles from Chrysler, Dodge, and Jeep

• USB / HDMI / Auxiliary Replacement Panel
• Replaces the factory USB and auxiliary panel
• Compatible with 2015-up vehicles from Chrysler, Dodge, and Jeep

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List price $69.99
-10% $62.99

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• USB / HDMI / Auxiliary Replacement Panel
• Replaces the factory USB and auxiliary panel
• Compatible with 2015-up vehicles from Chrysler, Dodge, and Jeep

Install Bay IBSSR

Panel Mount LED Switch

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Panel Mount LED Switch

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

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List price $16.99
-12% $14.99

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• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

NVX XHESG8

Universal High-Excursion Mesh Grille for Most 8" Subwoofers

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Universal High-Excursion Mesh Grille for Most 8" Subwoofers

• Universal high-excursion grille for 8" subwoofers
Does not work with NVX XC-series or VC-series v3 subs
• Finished in a non-reflective matte black color
• Includes grille and necessary mounting bracket
• Color: Matte black

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-23% $15.49

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Used from: $10.19 Like New from: $13.17

• Universal high-excursion grille for 8" subwoofers
Does not work with NVX XC-series or VC-series v3 subs
• Finished in a non-reflective matte black color
• Includes grille and necessary mounting bracket
• Color: Matte black

Kenwood CA-Y107MR

Y-Adapter Cable For Marine Remotes

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Y-Adapter Cable For Marine Remotes

• 14" Y-Cable • Proprietary 8-Pin Male Connector And Two Proprietary 8-Pin Female Connectors
• Allows you to add two Kenwood KCA-RC107MR Marine Wired Remotes To Your Compatible Kenwood Marine Headunit

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• 14" Y-Cable • Proprietary 8-Pin Male Connector And Two Proprietary 8-Pin Female Connectors
• Allows you to add two Kenwood KCA-RC107MR Marine Wired Remotes To Your Compatible Kenwood Marine Headunit

NVX XFMANL

0/4 Gauge AWG ANL/Mini-ANL Modular Linkable In-ine Fuse Holder for Car Audio and Marine Audio

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0/4 Gauge AWG ANL/Mini-ANL Modular Linkable In-ine Fuse Holder for Car Audio and Marine Audio

• See-through windows allow for easy inspection
• High-temperature, impact-resistant plastic casings
• Ultimate circuit protection
• High conductivity plating
• Maximum current transfer

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• See-through windows allow for easy inspection
• High-temperature, impact-resistant plastic casings
• Ultimate circuit protection
• High conductivity plating
• Maximum current transfer

Sundown Audio Z-8 D1 8" (Z8D1)

4000W Peak (2000W RMS) 8" Z Series Dual 1-ohm Car Subwoofer (SW-Z8D1)

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4000W Peak (2000W RMS) 8" Z Series Dual 1-ohm Car Subwoofer (SW-Z8D1)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Mount depth: 9.5"
• Sensitivity: 78.24 dB

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List price $839.99
-17% $699.99

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Install Bay IBR95

12V Digital Voltage Meter

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12V Digital Voltage Meter

• 12V Voltage Meter
• Digital Display
• Mounts in Dash

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List price $64.99
-11% $57.99

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• 12V Voltage Meter
• Digital Display
• Mounts in Dash

JL Audio LoC-22

2-Channel Active Line Output Converter

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2-Channel Active Line Output Converter

• Active line output converter
• All-analog circuit design
• Adaptable to most OEM amplifier outputs
• Input load switching
• Automatic turn-on function

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• Active line output converter
• All-analog circuit design
• Adaptable to most OEM amplifier outputs
• Input load switching
• Automatic turn-on function

Kicker KISL (46KISL)

Speaker-level to RCA Low-level for Amplifier Input Converter for Amps with a High-Low Switch

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Speaker-level to RCA Low-level for Amplifier Input Converter for Amps with a High-Low Switch

• 2-Channel Speaker to RCA Cable
• Split-Pin RCAs
• 16 Gauge Speaker Wire to RCA
• K-Grip Line & K-Grip Connectors
• Ergonomic Design • 2 Feet

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-33% $13.45

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• 2-Channel Speaker to RCA Cable
• Split-Pin RCAs
• 16 Gauge Speaker Wire to RCA
• K-Grip Line & K-Grip Connectors
• Ergonomic Design • 2 Feet

Atrend 10TK

Empty Single 10" Truck Sealed Subwoofer Enclosure

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Empty Single 10" Truck Sealed Subwoofer Enclosure

• 10" Single Truck Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Universal truck (wedge) enclosure design
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.62 cubic feet

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List price $99.99
-26% $73.99

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Alpine R2-W8D4

1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

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1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.7 dB

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List price $360.00
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-33% $239.95

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Wet Sounds REVO 8 FA SW-W GRILLE V3

Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

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Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

• 8" Marine Subwoofer Grille
• White SW grille design
• REVO 8 FA marine subwoofers sold separately

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$49.99

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Ships in 10-14 days

• 8" Marine Subwoofer Grille
• White SW grille design
• REVO 8 FA marine subwoofers sold separately

Metra IBWRD04

Dual 1/0-Gauge to Single 4-Gauge Input Wire Reducers

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Dual 1/0-Gauge to Single 4-Gauge Input Wire Reducers

• Dual 1/0-gauge input and output to 4-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

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• Dual 1/0-gauge input and output to 4-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

Limitless Lithium 6SPOT-LUGAL

6-Spot Universal Aluminum Lug-Style Ring Battery Terminals (Sold as Pair)

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6-Spot Universal Aluminum Lug-Style Ring Battery Terminals (Sold as Pair)

• 6-Spot Universal Lug-Style Ring Battery Terminals
• Designed for large-gauge power and ground connections
• Aluminum-plated build that resists corrosion
• Compatible with car, motorcycle and powersports applications
• Sold as pair

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$35.00

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Ships in 10-14 days

• 6-Spot Universal Lug-Style Ring Battery Terminals
• Designed for large-gauge power and ground connections
• Aluminum-plated build that resists corrosion
• Compatible with car, motorcycle and powersports applications
• Sold as pair

Stinger SSPW18RD

500 ft. 18 Gauge Primary Wire (Red)

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500 ft. 18 Gauge Primary Wire (Red)

• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: Red

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• 500 feet 18 Gauge Primary Wire
• Made from copper material
• Fine multi-strand copper conductors
• Color: Red

Infinity Reference 103WSL (INFSUBRF103WSL)

1050W Peak (350W RMS) 10” Reference Series Dual 2-or 4-ohm Shallow Car Subwoofer

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1050W Peak (350W RMS) 10” Reference Series Dual 2-or 4-ohm Shallow Car Subwoofer

• Peak Power: 1050 watts
• RMS Power: 350 watts
• Impedance: Dual 2 or 4 ohm
• Aluminum Cone
• Hi-Roll Rubber Surround
• Mount depth: 3-1/4"
• Sensitivity: 81 dB

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List price $279.95
-11% $249.95

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Pioneer GM-DX874

1200W Peak (600W RMS) Class D GM Series 4 Channel Car Amplifier with Remote Bass

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1200W Peak (600W RMS) Class D GM Series 4 Channel Car Amplifier with Remote Bass

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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List price $300.00
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Escort MAX 360 MKII

Radar and Laser Detector with Android Auto and Apple CarPlay Support

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Radar and Laser Detector with Android Auto and Apple CarPlay Support

• Multi-Band Radar and Laser Detection
• Graphic Color OLED display with current speed, vehicle voltage, and alert area monitors
• User, pilot, arrow and meter modes
• Directional arrows provide true 360-degree awareness
• Installs on the windshield

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$549.95

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• Multi-Band Radar and Laser Detection
• Graphic Color OLED display with current speed, vehicle voltage, and alert area monitors
• User, pilot, arrow and meter modes
• Directional arrows provide true 360-degree awareness
• Installs on the windshield

Metra 44-UL105 Antenna

1-3/4" Top Mount Universal Locking Antenna For Select BMW, Mercedes, Jaguar, Peugeot, and Porsche

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1-3/4" Top Mount Universal Locking Antenna For Select BMW, Mercedes, Jaguar, Peugeot, and Porsche

• Replacement Locking Antenna for Select Vehicles
• 37" 5-Section Black Retractable Mast
• 48" Cable

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• Replacement Locking Antenna for Select Vehicles
• 37" 5-Section Black Retractable Mast
• 48" Cable

NVX XIV21

3.28 ft (1 meter) 2-Channel V-Series RCA Audio Interconnect Cable

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3.28 ft (1 meter) 2-Channel V-Series RCA Audio Interconnect Cable

• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

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• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

Sundown Audio GT-R1 (GT1R8)

100W RMS 2" 8-ohm Pro Audio Super Tweeter (S-GT1R8)

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100W RMS 2" 8-ohm Pro Audio Super Tweeter (S-GT1R8)

• Super Tweeter
• 100 watts RMS Each
• 8 ohm Impedance

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-17% $39.99

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• Super Tweeter
• 100 watts RMS Each
• 8 ohm Impedance

Rockford Fosgate Prime R2S-1X10

800W Peak (400W RMS) Loaded Single 10" Sealed Shallow Truck Enclosure

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800W Peak (400W RMS) Loaded Single 10" Sealed Shallow Truck Enclosure

• Sealed truck enclosure with 1 10" Prime R2 Series Subwoofer
• 200 watts RMS (400 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 19" L x 13.5" H x 5.25" W x 3.25" W2

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Cerwin Vega VPSTX12

600W Peak (150W RMS) Loaded Single 12" Shallow Spare Tire Powered Subwoofer Enclosure

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600W Peak (150W RMS) Loaded Single 12" Shallow Spare Tire Powered Subwoofer Enclosure

• 12" Amplified Loaded Spare Tire Subwoofer System
• 150 watts RMS
• Includes Class D Amplifier
• Compact and shallow design
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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• 12" Amplified Loaded Spare Tire Subwoofer System
• 150 watts RMS
• Includes Class D Amplifier
• Compact and shallow design
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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    FAQ for Universal-Fit Audio & Electronics in 2003 DeVille

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2003 Cadillac DeVille?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your DeVille.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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