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2004 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 2004 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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DS18 ZR800.4D

3600W Peak (1280W RMS) Class D ZR Series 4-Channel Car Amplifier

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3600W Peak (1280W RMS) Class D ZR Series 4-Channel Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 320 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1280 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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$383.95

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$119.99

$83.99

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DS18 SMD-2800.5

2800W RMS Class AB/D SMD Series 5 Channel Car Amplifier with Bass Remote

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2800W RMS Class AB/D SMD Series 5 Channel Car Amplifier with Bass Remote

• 180 watts x 4 channel + 700 watts x 1 channel @ 4 ohm
• 250 watts x 4 channel + 1100 watts x 1 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm + 1100 watts x 1 channel @ 2 ohm
• Total RMS Power: 2800 watts
• Class AB / D 1 ohm Stable 5-Channel Amplifier

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$949.95

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NVX XKIT06

$184.99

$129.49

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DS18 INF-80AH

12V 80Ah Infinite Absorbent Glass Mat (AGM) Car Power Cell Battery

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12V 80Ah Infinite Absorbent Glass Mat (AGM) Car Power Cell Battery

• 12.8-Volt AGM Power Cell
• Perfect for car audio stereo systems of up to 5000 watts
• Leak-proof, non-hazardous design
• Resists extreme vibrations
• 100% sealed and maintenance free
• Absorbed glass mat material

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List price $431.99
-17% $359.95

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Ships in 10-14 days

• 12.8-Volt AGM Power Cell
• Perfect for car audio stereo systems of up to 5000 watts
• Leak-proof, non-hazardous design
• Resists extreme vibrations
• 100% sealed and maintenance free
• Absorbed glass mat material

DS18 DSP2.6DBT

6-Channel Digital Sound Processor with Bluetooth and LCD Screen

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6-Channel Digital Sound Processor with Bluetooth and LCD Screen

• 2-Channel input and 6-Channel out digital sound processor
• DSP with LCD Screen feature
• Bluetooth connectivity via DS18 DSP
• IOS and Android Compatible

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$203.95

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• 2-Channel input and 6-Channel out digital sound processor
• DSP with LCD Screen feature
• Bluetooth connectivity via DS18 DSP
• IOS and Android Compatible

DS18 DSP8.8BT

8-Channel Digital Signal Processor with Bluetooth

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8-Channel Digital Signal Processor with Bluetooth

• 31-band parametric equalizer
• 8-channel RCA outputs
• Variable high-pass and low-pass filters
• Wireless control with DSP8.8BT app for Android and iOS devices

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List price $475.99
-17% $395.95

In stock.

• 31-band parametric equalizer
• 8-channel RCA outputs
• Variable high-pass and low-pass filters
• Wireless control with DSP8.8BT app for Android and iOS devices

DS18 EBM-FFPUNI-4X8

Empty Quad 8" Vented Enclosure

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Empty Quad 8" Vented Enclosure

• Empty 8" Quad Ported Subwoofer Enclosure
• 3/4" medium density fiberboard construction with sprayliner finish
• Vented front-firing design enhances sound projection
• Under seat enclosure mounting

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$479.95

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Only 1 Left!

DS18 SRW8.4

300W Peak (150W RMS) 8" SRW Series Single 4-ohm Shallow Subwoofer

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300W Peak (150W RMS) 8" SRW Series Single 4-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Paper Cone Material
• Rubber Surround
• Mount depth: 2.95"
• Sensitivity: 86 dB

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List price $134.99
-17% $111.95

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DS18 NXL-X8TP/WH.NS

Empty 6.5" Marine Tower Speaker Pods (White)

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Empty 6.5" Marine Tower Speaker Pods (White)

• Empty 6.5" Marine Tower Speaker Pods
• Injection PC and ABS enclosure material
• Die-cast 360-degree adjustable clamps
• IP65 marine grade rating

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List price $359.99
-17% $299.95

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• Empty 6.5" Marine Tower Speaker Pods
• Injection PC and ABS enclosure material
• Die-cast 360-degree adjustable clamps
• IP65 marine grade rating

DS18 FLMBX-MALIBU/WH

Flat Mount Bracket Clamp Adaptor for Malibu G10+, NXL-X, and CF-X Series Marine Tower Speakers in White

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Flat Mount Bracket Clamp Adaptor for Malibu G10+, NXL-X, and CF-X Series Marine Tower Speakers in White

• Flat mounting bracket clamp adaptor for tower speakers
• Fits Malibu G10+ towers, and all NXL-X and CF-X tower speakers
• 30° tilt adjustable bracket construction
• Made from high-quality die-cast Kirksite
• Painted in glossy white

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List price $179.99
-17% $149.95

In stock.

• Flat mounting bracket clamp adaptor for tower speakers
• Fits Malibu G10+ towers, and all NXL-X and CF-X tower speakers
• 30° tilt adjustable bracket construction
• Made from high-quality die-cast Kirksite
• Painted in glossy white

DS18 EN-OSP62

Empty Dual 6.5" Universal Overhead Flat Mount Speaker Pod

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Empty Dual 6.5" Universal Overhead Flat Mount Speaker Pod

• 6.5" Universal Dual Overhead Flat Mount Speaker Pod
• Durable polyethylene waterproof enclosure with UV protection
• Accommodates most 6.5" DS18 speakers
• Easy and hassle-free install with all mounting hardware included

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$179.95

In stock.

• 6.5" Universal Dual Overhead Flat Mount Speaker Pod
• Durable polyethylene waterproof enclosure with UV protection
• Accommodates most 6.5" DS18 speakers
• Easy and hassle-free install with all mounting hardware included

DS18 PRO-TWX1

480W Peak (240W RMS) 3.8" 4-ohm Pro Audio Super Bullet Tweeters

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480W Peak (240W RMS) 3.8" 4-ohm Pro Audio Super Bullet Tweeters

• 3.8" Aluminum Super Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

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$41.95

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• 3.8" Aluminum Super Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

DS18 PRO-TWX6 (Sold individually)

480W Peak (120W RMS) 4x4" PRO-TWX Series 8-ohm Aluminum Super Bullet Tweeter

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480W Peak (120W RMS) 4x4" PRO-TWX Series 8-ohm Aluminum Super Bullet Tweeter

• 4x4" PRO-TWX 8-ohm Aluminum Super Bullet Tweeter
• 480 watts Peak Each
• Program Power: 240 watts each
• 120 watts RMS Each
• 8 ohm Impedance
• Sensitivity: 112 dB (1w/1m)

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$53.95

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• 4x4" PRO-TWX 8-ohm Aluminum Super Bullet Tweeter
• 480 watts Peak Each
• Program Power: 240 watts each
• 120 watts RMS Each
• 8 ohm Impedance
• Sensitivity: 112 dB (1w/1m)

DS18 PRO-TW3L (Sold Individually)

500W Peak (250W RMS) 4" PRO-TW Series 4-ohm Aluminum Super Bullet Tweeter with RGB LED Lights

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500W Peak (250W RMS) 4" PRO-TW Series 4-ohm Aluminum Super Bullet Tweeter with RGB LED Lights

• 4" PRO-TW Series 4-ohm Aluminum Super Bullet Tweeter
• RGB LED illumination
• 500 watts Peak Each
• 200 watts RMS Each
• 4 ohm Impedance
• Sensitivity: 105 dB

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$57.95

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• 4" PRO-TW Series 4-ohm Aluminum Super Bullet Tweeter
• RGB LED illumination
• 500 watts Peak Each
• 200 watts RMS Each
• 4 ohm Impedance
• Sensitivity: 105 dB

DS18 PRO-TW850CN-4/BK

500W Peak (170W RMS) 4" Aluminum High Compression Driver and Bullet Tweeter Hybrid in Black

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500W Peak (170W RMS) 4" Aluminum High Compression Driver and Bullet Tweeter Hybrid in Black

• Aluminum compression driver and bullet tweeter hybrid
• PEI (Polyetherimide) Diaphragm Material
• 500 watts Peak, 170 watts RMS
• 4 ohm Impedance
• Painted in high gloss black

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List price $187.99
-17% $155.95

In stock.

• Aluminum compression driver and bullet tweeter hybrid
• PEI (Polyetherimide) Diaphragm Material
• 500 watts Peak, 170 watts RMS
• 4 ohm Impedance
• Painted in high gloss black

DS18 INF-18AH

12V 18Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

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12V 18Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

• 12.4-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 750W motorcycle and ATV audio systems
• L Terminal / M5 Nut & Bolt
• Mounts upside down or in multiple configurations

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List price $86.99
-17% $71.95

In stock.

• 12.4-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 750W motorcycle and ATV audio systems
• L Terminal / M5 Nut & Bolt
• Mounts upside down or in multiple configurations

DS18 INF-45AH

12V 45Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

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12V 45Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1500W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

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List price $230.99
-17% $191.95

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• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1500W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

DS18 PRO-DR1P

240W Peak (60W RMS) 1” Throat 8-ohm Twist-on Compression Driver with Phenolic Voice Coil

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240W Peak (60W RMS) 1” Throat 8-ohm Twist-on Compression Driver with Phenolic Voice Coil

• 1" Throat compression driver
• Phenolic Diaphragm Material
• 240 watts Peak, 60 watts RMS
• 8 ohm Impedance

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List price $32.99
-18% $26.95

In stock.

• 1" Throat compression driver
• Phenolic Diaphragm Material
• 240 watts Peak, 60 watts RMS
• 8 ohm Impedance

DS18 INF-55AH

12V 55Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

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12V 55Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1750W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

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List price $309.99
-17% $257.95

Available

Ships in 10-14 days

• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1750W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

DS18 PRO-TW750CN-8/BK (Sold Individually)

440W Peak (160W RMS) 4" PRO Series 8-ohm Pro Audio Super Bullet Tweeter

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440W Peak (160W RMS) 4" PRO Series 8-ohm Pro Audio Super Bullet Tweeter

• 4" PRO Series Pro Audio Tweeter
• 440 watts Peak, 160 watts RMS
• 8 ohm impedance

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$119.95

In stock

Only 2 Left!

• 4" PRO Series Pro Audio Tweeter
• 440 watts Peak, 160 watts RMS
• 8 ohm impedance

DS18 ZXI-112LD.RG

2000W Peak (1000W RMS) Loaded Single 12" Rugged Vented Enclosure

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2000W Peak (1000W RMS) Loaded Single 12" Rugged Vented Enclosure

• Ported armored rugged enclosure with 1 12" ZXI Series Subwoofer
• 1000 watts RMS (2000 watts Peak)
• Final Impedance: 1-ohm
• Dimensions: 23.15" L x 14.5" H x 17.72" W x 19.7" W2

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$539.95

In stock.

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    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2004 Cadillac DeVille?

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

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
    • 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.