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1971 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 1971 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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PAC AVS21

Two-Way Audio/Video RCA Switcher

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Two-Way Audio/Video RCA Switcher

• Switchable Positive or Negative Trigger
• Slim and Compact Design
• Plug and Play Connection

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List price $149.00
-58% $61.99

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• Switchable Positive or Negative Trigger
• Slim and Compact Design
• Plug and Play Connection

Metra 44-UA20 Antenna

Replacement Amplified Hide-Away Antenna

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Replacement Amplified Hide-Away Antenna

• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

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• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

Escort 0020057-2

Original StickyCup Car Mount for Escort Radar Detectors

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Original StickyCup Car Mount for Escort Radar Detectors

• Original StickyCup silicone suction windshield mount
• Compatible with Escort radar detectors
• Small and reliable mounting suction with strong adhesion
• Easy release tab ensures strong suction to the windshield

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• Original StickyCup silicone suction windshield mount
• Compatible with Escort radar detectors
• Small and reliable mounting suction with strong adhesion
• Easy release tab ensures strong suction to the windshield

Atrend 10SQL

Empty Single 10" Pro Series Medium Sealed Subwoofer Enclosure

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Empty Single 10" Pro Series Medium Sealed Subwoofer Enclosure

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.69 cubic feet
• Completely miter and dado end panels
• Premium carpeted finish
• Made in the USA

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JL Audio 13W7AE-D1.5

1500W RMS 13.5” W7AE Series Dual 1.5-ohm Car Subwoofer

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1500W RMS 13.5” W7AE Series Dual 1.5-ohm Car Subwoofer


• RMS Power: 1500 watts
• Impedance: Dual 1.5 ohm
• Polypropylene Cone
• Polyester Foam Surround
• Mount depth: 10.50"
• Sensitivity: 86.3 dB

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Select Increments Versa-Pods (52308)

Empty Pair 4" Universal Speaker Pods

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Empty Pair 4" Universal Speaker Pods

• Empty Single 4" Universal Speaker Pods
• Durable ABS plastic enclosure construction
• Versatile use for cars, motorcycles, and extreme terrain vehicles

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• Empty Single 4" Universal Speaker Pods
• Durable ABS plastic enclosure construction
• Versatile use for cars, motorcycles, and extreme terrain vehicles

NVX VAD10004 v2 (VAD10004v2)

1000W RMS Class D Full Range 4-Channel Car/Marine/Powersports Amplifier

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1000W RMS Class D Full Range 4-Channel Car/Marine/Powersports Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Available Offers (2) for NVX VAD10004 v2 (VAD10004v2)
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List price $335.99
-17% $279.99
$237.99 with coupon | Price details
2026-06-30 23:59:00
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
Used from: $229.99 Like New from: $242.24

Belva BCCAP22 (CC2218)

22/18 Gauge Nylon Crimp Cap 100 Pack

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22/18 Gauge Nylon Crimp Cap 100 Pack

• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 100

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• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 100

4 Pack of 125 Amp Nickel-Plated MANL Fuse (Belva BMANL125)

Four fuses per order. High quality 125 Amp MANL Fuses

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Four fuses per order. High quality 125 Amp MANL Fuses

• 125A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

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• 125A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

JL Audio JD500/1

500W RMS Class D JD Series Monoblock Car Amplifier

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500W RMS Class D JD Series Monoblock Car Amplifier

• 250 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Sundown Audio M-12 D1 12" (M12D1)

4000W Peak (2000W RMS) 12" M Series Dual 1-ohm Car Subwoofer (SW-M12D1)

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4000W Peak (2000W RMS) 12" M Series Dual 1-ohm Car Subwoofer (SW-M12D1)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 84.387 dB

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List price $719.99
-17% $599.99

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Stinger SK101

300A 1/0-Gauge Amplifier Power Wiring Kit with Stinger SHD201 ANL Fuse Holder

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300A 1/0-Gauge Amplifier Power Wiring Kit with Stinger SHD201 ANL Fuse Holder

• 1/0 gauge Power Amplifier Installation Kit
• Designed specifically for car audio systems up to 4000 watts
Stinger SHD201 water-resistant ANL fuse holder included

15% off an NVX XCAP10H w/ Select Amp Kits
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• 1/0 gauge Power Amplifier Installation Kit
• Designed specifically for car audio systems up to 4000 watts
Stinger SHD201 water-resistant ANL fuse holder included

JL Audio M6-770STR-S-Cm

7.7" Trim Ring for Sport Grilles in JL Audio M6 Series Marine Speakers (Cream)

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7.7" Trim Ring for Sport Grilles in JL Audio M6 Series Marine Speakers (Cream)

• 7.7" trim ring for sport grilles in M6 speakers
• M6 speakers sold separately
• Color: Cream

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$37.99

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• 7.7" trim ring for sport grilles in M6 speakers
• M6 speakers sold separately
• Color: Cream

Limited time!

Belva BASB27

27" 500W Weatherproof UTV/ATV/Powersports Bluetooth Soundbar with 8 Speakers and LED Lighting

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27" 500W Weatherproof UTV/ATV/Powersports Bluetooth Soundbar with 8 Speakers and LED Lighting

• Weatherproof IPX 5 soundbar
• 1" Pair of Horn Loaded Tweeters
• 3" Pairs of Full-Range Speakers
• Built-in Class-D Amplifier
• Adjustable Clamps fit bars from 1.75" to 2"

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• Weatherproof IPX 5 soundbar
• 1" Pair of Horn Loaded Tweeters
• 3" Pairs of Full-Range Speakers
• Built-in Class-D Amplifier
• Adjustable Clamps fit bars from 1.75" to 2"

NVX NSW102 Version 3 (NSW102v3)

1000W Peak (500W RMS) N-Series v3 10" Dual 2-Ohm Car Subwoofer

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1000W Peak (500W RMS) N-Series v3 10" Dual 2-Ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 5.36"
• Sensitivity: 85 dB

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NVX NE122P

Dual 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 3.25 Cu. Ft. with Polyfil and NVX Logo

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Dual 12" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 3.25 Cu. Ft. with Polyfil and NVX Logo

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 3.25 cubic feet
• Premium Black Carpet with Black NVX Logo

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-17% $159.99

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• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 3.25 cubic feet
• Premium Black Carpet with Black NVX Logo

Stinger SPT53102

PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

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PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

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• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

JL Audio FiX-86

6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

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6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

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• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

Metra OH-UNI01

Empty Dual 6.5" Speakers and Single DIN Stereo Overhead Console Enclosure

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Empty Dual 6.5" Speakers and Single DIN Stereo Overhead Console Enclosure

• Empty Dual 6.5" Speakers and Single DIN Radio Overhead Console Enclosure
• Durable ABS plastic construction and matte black finish
• Paintable for custom installation
• Water-resistant design

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List price $128.99
-10% $115.99

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• Empty Dual 6.5" Speakers and Single DIN Radio Overhead Console Enclosure
• Durable ABS plastic construction and matte black finish
• Paintable for custom installation
• Water-resistant design

Directed 524CL

524CL Cable Lock Bracket Kit (DEI 524CL)

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524CL Cable Lock Bracket Kit (DEI 524CL)

• Allows aftermarket actuators to work with cable door lock systems
• Each kit operates two doors
• Does not include actuators
• Includes module, wiring harness and installation guide

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• Allows aftermarket actuators to work with cable door lock systems
• Each kit operates two doors
• Does not include actuators
• Includes module, wiring harness and installation guide

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    FAQ for Universal-Fit Audio & Electronics in 1971 DeVille

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1971 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:

    • You see only parts engineered for your exact vehicle
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.