Garage
Shop

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.

Loading...
Filters

We are sorry, no available results!

filter-icon Filters & Sort

JBL BassPro SL 2 (SUBBPSL2AM)

125W RMS Loaded Single 8" Amplified Under-Seat Compact Subwoofer Enclosure

SUBBPSL2AM big
Go to item page Right Arrow Icon of Right Arrow

125W RMS Loaded Single 8" Amplified Under-Seat Compact Subwoofer Enclosure

• 8" Amplified Loaded Subwoofer System
• 125 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $38.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $429.95
-12% $379.95

In stock

Only 2 Left!

• 8" Amplified Loaded Subwoofer System
• 125 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Directed 451M

Door Lock Relay Module with Resistors DEI 451M

451M big
Go to item page Right Arrow Icon of Right Arrow

Door Lock Relay Module with Resistors DEI 451M

• Door Lock Relay Module with Resistors DEI 451M
• Compatible with most Directed Electronics systems
• 3-Pin Plug Interface with DEI system
• Will interface with most electric power door lock systems drawing 30A or less

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

7
List price $21.99
-32% $14.99

In stock

• Door Lock Relay Module with Resistors DEI 451M
• Compatible with most Directed Electronics systems
• 3-Pin Plug Interface with DEI system
• Will interface with most electric power door lock systems drawing 30A or less

NVX XSBI200

200-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 300-Amp Surge)

XSBI200 big
Go to item page Right Arrow Icon of Right Arrow

200-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 300-Amp Surge)

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

6
List price $79.99
-38% $49.99

In stock

Used from: $45.99

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

Limitless Lithium LLDUAL-1/0

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

LLDUAL-1/0 big
Go to item page Right Arrow Icon of Right Arrow

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

• Universal Dual 1/0 to 1/0 Gauge Amp Inputs
• Merges two 1/0-gauge cables into one input
• Precision machined construction
• Sold as pair

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$15.00

Available

Ships in 10-14 days

• Universal Dual 1/0 to 1/0 Gauge Amp Inputs
• Merges two 1/0-gauge cables into one input
• Precision machined construction
• Sold as pair

Cobra RAD 480i

Radar and Laser Detector with Bluetooth and App Control

0180009-1 big
Go to item page Right Arrow Icon of Right Arrow

Radar and Laser Detector with Bluetooth and App Control

• Multiple Band Radar and Laser Detector
• Long range detection
• 2nd generation false alarm filtering
• Built-in Digital Signal Processing (DSP)
• Sensitivity (SEN) button
• Defender database

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$149.95

In stock

• Multiple Band Radar and Laser Detector
• Long range detection
• 2nd generation false alarm filtering
• Built-in Digital Signal Processing (DSP)
• Sensitivity (SEN) button
• Defender database

Crimestopper SPLCD-52

2-Way 5-Button Remote Start Keyless Entry Replacement LCD Remote

SPLCD-52 big
Go to item page Right Arrow Icon of Right Arrow

2-Way 5-Button Remote Start 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-502

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

10
List price $89.95
-11% $79.99

In stock

• 2-Way 5-Button Replacement LCD Remote
• Up to 3000 feet of range (0.56 miles)
• Replacement remote for SP-502

BOYO Vision VTSR100

Rear Parking Assist System with 4 Parking Sensors (Silver)

VTSR100 big
Go to item page Right Arrow Icon of Right Arrow

Rear Parking Assist System with 4 Parking Sensors (Silver)

• Rear parking sensors with waterproof connectors
• Audible buzzer with volume adjustment
• Total Number of Sensors: 4
• Detection Distance: 1 feet to 5.9 feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $71.00
-10% $63.90

In stock

Only 2 Left!

• Rear parking sensors with waterproof connectors
• Audible buzzer with volume adjustment
• Total Number of Sensors: 4
• Detection Distance: 1 feet to 5.9 feet

NVX XKIT82

Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

XKIT82 big
Go to item page Right Arrow Icon of Right Arrow

Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 800 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• CEA-2015 and BC5W2 Compliant

3+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $8.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

60
List price $95.99
-17% $79.99

In stock

Continue to cart

Available Offers (3) for NVX XKIT82
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT82 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT82 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Used from: $55.99

NVX XW8BL20

20 ft 8-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

XW8BL20 big
Go to item page Right Arrow Icon of Right Arrow

20 ft 8-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

• 20 feet 8 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

20
List price $44.99
-33% $29.99

In stock

NVX XW0BL5

5 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

XW0BL5 big
Go to item page Right Arrow Icon of Right Arrow

5 ft 1/0-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

• 5 feet 1/0 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

28
List price $49.99
-30% $34.99

In stock

Only 2 Left!

Deaf Bonce MFA 4.180

1080W RMS Class D Machete Series 4 Channel Car Amplifier

MFA 4.180 big
Go to item page Right Arrow Icon of Right Arrow

1080W RMS Class D Machete Series 4 Channel Car Amplifier

• 180 watts x 4 channel @ 4 ohm
• 270 watts x 4 channel @ 2 ohm
• Bridged: 540 watts x 2 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.99 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$259.90

In stock

Continue to cart

Available Offers (2) for Deaf Bonce MFA 4.180
FREE Belva Amp Kit at Checkout!
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.

Stinger SSCB200

Stinger Select 200 Amp Circuit Breaker

SSCB200 big
Go to item page Right Arrow Icon of Right Arrow

Stinger Select 200 Amp Circuit Breaker

• High Current Transfer
• Stinger Select 200 Amp Circuit Breaker
• Manual Trip Reset
• High Current Protection

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $59.00
-51% $28.99

In stock

• High Current Transfer
• Stinger Select 200 Amp Circuit Breaker
• Manual Trip Reset
• High Current Protection

Hertz MPCX 2 TM.3 Single

Mille Pro Series Passive Audio Crossover

MPCX 2 TM.3 Single big
Go to item page Right Arrow Icon of Right Arrow

Mille Pro Series Passive Audio Crossover

• Specifically developed for Hertz MP 70.3 and Hertz MP25.3
• Two-position (0 / +2 dB) switch for tweeter level adjustments
• Pure copper wire low series resistance inductors

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $8.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $90.00
-11% $79.99

In stock

• Specifically developed for Hertz MP 70.3 and Hertz MP25.3
• Two-position (0 / +2 dB) switch for tweeter level adjustments
• Pure copper wire low series resistance inductors

Stinger SE-1502

5 ft. (1.5-Meters) LVDS 8-Pin Display Video Harness

SE-1502 big
Go to item page Right Arrow Icon of Right Arrow

5 ft. (1.5-Meters) LVDS 8-Pin Display Video Harness

• Direct Connection to the factory harness
• Length: 5 feet
• Color coded wires for easy installation
• No cutting or splicing required

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$35.99

In stock

Only 1 Left!

• Direct Connection to the factory harness
• Length: 5 feet
• Color coded wires for easy installation
• No cutting or splicing required

Tru Spec Single 12" (1447TS)

Empty Single 12" Vented Prefabricated Enclosure for Sundown SA12V2 Subwoofers

Single 12” big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Prefabricated Enclosure for Sundown SA12V2 Subwoofers

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.75 cubic feet
• Compatible for Sundown SA12V2 subwoofers (Sold separately)

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

9
List price $289.99
-40% $174.99

In stock.

Belva 1.0 Farad Capacitor

1.0 Farad Capacitor with Digital Red Display

BB1D big
Go to item page Right Arrow Icon of Right Arrow

1.0 Farad Capacitor with Digital Red Display

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

80
List price $79.99
-51% $38.99

In stock

Used from: $29.99

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

Stinger SHD21

HPM Series Power or Ground Distribution Block with Satin Chrome Finish

SHD21 big
Go to item page Right Arrow Icon of Right Arrow

HPM Series Power or Ground Distribution Block with Satin Chrome Finish

• HPM Series Power or Ground Distribution Block
• Two 1/0 Gauge or 4 Gauge Inputs
• Four 4/8 Gauge Outputs
• Multiple Input/Output Design
• Protective Cover Included
• Corrosion Resistant Satin Chrome Finish

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

40
List price $49.00
-51% $23.99

In stock

• HPM Series Power or Ground Distribution Block
• Two 1/0 Gauge or 4 Gauge Inputs
• Four 4/8 Gauge Outputs
• Multiple Input/Output Design
• Protective Cover Included
• Corrosion Resistant Satin Chrome Finish

NVX XW4BK5

5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

XW4BK5 big
Go to item page Right Arrow Icon of Right Arrow

5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Black)

• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

5
List price $29.99
-33% $19.99

In stock

• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Black

PAC RPA-VA1

Video Adapter and Video Signal Filter

RPA-VA1 big
Go to item page Right Arrow Icon of Right Arrow

Video Adapter and Video Signal Filter

• Converts differential video signal to a single-ended composite video signal
• Improves display of OE camera on the aftermarket radio
• Reduces/eliminates video noise
• Two-wire power connection for simple installation
• Great for Ford and Chrysler vehicles and many more

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $59.00
-56% $25.99

In stock

Only 2 Left!

• Converts differential video signal to a single-ended composite video signal
• Improves display of OE camera on the aftermarket radio
• Reduces/eliminates video noise
• Two-wire power connection for simple installation
• Great for Ford and Chrysler vehicles and many more

Limited time!

JL Audio JD400/4

400W RMS Class D JD Series 4 Channel Car Amplifier

JD400/4 big
Go to item page Right Arrow Icon of Right Arrow

400W RMS Class D JD Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $30.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

34
$299.99

In stock


Available Deal
JD400/4 main
Offer may end without notice

Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT44

$119.99

$83.99

$36 Savings!

Add to cart

Used from: $254.99

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    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.

    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2014 Audi TT

    1971 Cadillac DeVille

    2017 Lincoln MKT

    1968 Buick LeSabre

    2003 Dodge Viper

    2020 Nissan Armada

    2009 BMW 550i

    2012 Lexus LFA

    2015 Nissan Altima

    2002 Jaguar S-Type

    Vehicle
    Store
    Delete

    2015 Can-Am Commander E LSV SE

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.