Garage
Shop

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.

Loading...
Filters
You Recently Chose:

We are sorry, no available results!

filter-icon Filters & Sort

Kicker L7X181 (49L7X181)

2000W RMS 18" SoloX Series Dual 1-ohm Subwoofer

49L7X181 big
Go to item page Right Arrow Icon of Right Arrow

2000W RMS 18" SoloX Series Dual 1-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

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

VIP Product Get $95.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $1049.99
-10% $949.99

In stock

Only 2 Left!

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 1 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

Kicker KISL (46KISL)

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

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

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

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $19.99
-33% $13.45

In stock

• 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

Limited time!

Kicker KXMA800.8 (48KXMA8008)

1200W Peak (800W RMS) Class D KXM Series 8-Channel Marine Amplifier

KXMA800.8 big
Go to item page Right Arrow Icon of Right Arrow

1200W Peak (800W RMS) Class D KXM Series 8-Channel Marine Amplifier

• 50 watts x 8 channel @ 4 ohm
• 100 watts x 8 channel @ 2 ohm
• Bridged: 200 watts x 4 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 8-Channel Amplifier

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

VIP Product Get $57.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $819.99
Save $244.03
-30% $575.96

In stock

Only 2 Left!

Kicker BT4 (46BT4)

Positive or Negative Brass Battery Terminal with Two 1/0-8 Gauge and One 4-8 Gauge Output

BT4 big
Go to item page Right Arrow Icon of Right Arrow

Positive or Negative Brass Battery Terminal with Two 1/0-8 Gauge and One 4-8 Gauge Output

• BT4 Pos/Neg Battery Terminal. (2) 1/0-8AWG, (1) 4-8AWG
• (2) 1/0-4 Gauge out
• 4-8 Gauge out
• Brass construction

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

3
List price $39.99
-43% $22.95

In stock

• BT4 Pos/Neg Battery Terminal. (2) 1/0-8AWG, (1) 4-8AWG
• (2) 1/0-4 Gauge out
• 4-8 Gauge out
• Brass construction

Kicker L7X152RK (49L7X152RK)

15" SoloX Series Dual 2-ohm Recone Kit for L7X152 Subwoofer

49L7X152RK big
Go to item page Right Arrow Icon of Right Arrow

15" SoloX Series Dual 2-ohm Recone Kit for L7X152 Subwoofer

• 15" SoloX Series Dual 2-ohm Recone Kit
• Pre-assembled cone, surround, and voice coil
• Impedance: Dual 2-ohm
• Alignment shims are included for installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $279.99
-11% $249.99

Available

Ships in 10-14 days

Used from: $174.99

• 15" SoloX Series Dual 2-ohm Recone Kit
• Pre-assembled cone, surround, and voice coil
• Impedance: Dual 2-ohm
• Alignment shims are included for installation

Kicker L7X182 (49L7X182)

2000W RMS 18" SoloX Series Dual 2-ohm Subwoofer

49L7X182 big
Go to item page Right Arrow Icon of Right Arrow

2000W RMS 18" SoloX Series Dual 2-ohm Subwoofer

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

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

VIP Product Get $95.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $1049.99
-10% $949.99

In stock

Only 3 Left!

• RMS Power: 1000 - 2000 watts
• Impedance: Dual 2 ohm
• Double-pressed pulp Cone
• UV-resistant Santoprene Surround
• Mount depth: 13-3/16"

Limited time!

Kicker CXA1800.1 (46CXA18001T)

1800W RMS Class D CX Series Monoblock Car Amplifier

CXA1800.1 big
Go to item page Right Arrow Icon of Right Arrow

1800W RMS Class D CX Series Monoblock Car Amplifier

• 900 watts x 1 channel @ 4 ohm
• 1800 watts x 1 channel @ 2 ohm
• 1800 watts x 1 channel @ 1 ohm
• Total RMS Power: 1800 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $50.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

24
List price $549.99
-9% $499.99

In stock


Available Deal
CXA1800.1 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 XKIT02

$179.99

$125.99

$54 Savings!

Add to cart

Limited time!

Kicker KEY200.4 (47KEY2004)

200W RMS KEY Series 4-Channel Smart Amplifier with Automatic EQ and Processor

47KEY200.4 big
Go to item page Right Arrow Icon of Right Arrow

200W RMS KEY Series 4-Channel Smart Amplifier with Automatic EQ and Processor

• 50 watts x 4 channel @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class 4 ohm Stable 4-Channel Amplifier

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

VIP Product Get $24.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

5
List price $329.99
Save $90.03
-27% $239.96

In stock

• 50 watts x 4 channel @ 4 ohm
• @ 2 ohm
• Bridged: @ 4 ohm
• Total RMS Power: 200 watts
• Class 4 ohm Stable 4-Channel Amplifier

Kicker L7S102 (44TL7S102)

1200W Peak (600W RMS) Loaded Single 10" Vented Truck Enclosure

44TL7S102 big
Go to item page Right Arrow Icon of Right Arrow

1200W Peak (600W RMS) Loaded Single 10" Vented Truck Enclosure

• Ported truck enclosure with 1 10" Solo-Baric L7S Series Subwoofer
• 600 watts RMS (1200 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 21-1/2" L x 15" H x 10" W x 6-1/2" W2

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 $459.99
-7% $429.99

Available

Ships in 10-14 days

Kicker GR100

Grille for Select Kicker 10" Subwoofers

GR100 big
Go to item page Right Arrow Icon of Right Arrow

Grille for Select Kicker 10" Subwoofers

• Subwoofer Grille for Kicker Comp and Solo Classic Series
• Protects Exposed Subwoofer
• Easy Installation
• Black Metallic 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

16
$19.99

Available

Ships in 10-14 days

• Subwoofer Grille for Kicker Comp and Solo Classic Series
• Protects Exposed Subwoofer
• Easy Installation
• Black Metallic Finish

Kicker CWR12G (43CWR12G)

Grille for Select Kicker 12" Subwoofers

CWR12G big
Go to item page Right Arrow Icon of Right Arrow

Grille for Select Kicker 12" Subwoofers

• Fits 12" CompR Series Subs
• Includes Mounting Hardware and Screw Covers
• ABS Plastic Design
• Protects Subs

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
$24.99

In stock

• Fits 12" CompR Series Subs
• Includes Mounting Hardware and Screw Covers
• ABS Plastic Design
• Protects Subs

Limited time!

Kicker L7S82 (44L7S82)

900W Peak (450W RMS) 8” Solo-Baric L7S Series Dual 2-ohm Subwoofer

L7S82 big
Go to item page Right Arrow Icon of Right Arrow

900W Peak (450W RMS) 8” Solo-Baric L7S Series Dual 2-ohm Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Impedance: Dual 2 ohm
• Injection Molded Polypropylene Cone
• Ribbed Santoprene Surround
• Mount depth: 4-3/4"
• Sensitivity: 82.37 dB

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

VIP Product Get $17.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $239.99
Save $64.03
-27% $175.96

In stock

Used from: $153.99

Kicker KISLOC2 (46KISLOC2)

K Series 2-Channel Line Output Converter With 12-Volt Turn-on

KISLOC2 big
Go to item page Right Arrow Icon of Right Arrow

K Series 2-Channel Line Output Converter With 12-Volt Turn-on

• 2-ch speaker-to-RCA converter, LOC
• Compatible with OEM radios that have short circuit protection
• Take as much as 55 watts of input and deliver up to 8 volts of output

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 $29.99
-33% $19.99

In stock

• 2-ch speaker-to-RCA converter, LOC
• Compatible with OEM radios that have short circuit protection
• Take as much as 55 watts of input and deliver up to 8 volts of output

Limited time!

Kicker CXA400.1 (46CXA4001T)

400W RMS Class D CX-Series Monoblock Car Amplifier

CXA400.1 big
Go to item page Right Arrow Icon of Right Arrow

400W RMS Class D CX-Series Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• 400 watts x 1 channel @ 1 ohm
• Total RMS Power: 400 watts
• Class D 1 ohm Stable Monoblock Amplifier

Save 30% off an NVX XKIT82 Amp Kit at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

10
List price $219.99
-9% $199.99

In stock


Available Deal
CXA400.1 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 XKIT82

$79.99

$55.99

$24 Savings!

Add to cart

Kicker CWQ122 (51CWQ122)

2000W Peak (1000W RMS) 12" CompQ Series Dual 2-ohm Subwoofer

51CWQ122 big
Go to item page Right Arrow Icon of Right Arrow

2000W Peak (1000W RMS) 12" CompQ Series Dual 2-ohm Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Impedance: Dual 2 ohm
• SoloKon Polypropylene Cone
• Blue-stitched Santoprene Rubber Surround
• Mount depth: 7-1/8"
• Sensitivity: 85.4 dB

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

VIP Product Get $35.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

4
List price $379.99
-8% $349.99

In stock

Kicker KW16400 (46KW16400)

400 ft 16-Gauge Oxygen-Free Copper Speaker Wire

KW16400 big
Go to item page Right Arrow Icon of Right Arrow

400 ft 16-Gauge Oxygen-Free Copper Speaker Wire

• 400 feet 16 gauge K-Series Speaker Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue and Frosted Clear

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$199.99

Available

Ships in 10-14 days

• 400 feet 16 gauge K-Series Speaker Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue and Frosted Clear

Kicker KMWPR820 (47KMWPR820)

20 ft. 8 Gauge Full-Spec Hyper-Flex Marine Power Wire (Red)

47KMWPR820 big
Go to item page Right Arrow Icon of Right Arrow

20 ft. 8 Gauge Full-Spec Hyper-Flex Marine Power Wire (Red)

• 8 gauge Power Cable
• OFC (100% Oxygen-Free Copper) material
• Full-spec hyper-flex cable design
• Plated in anti-corrosive 99.9% tin
• Length: 20 feet (6 meter)

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$29.99

In stock

Only 3 Left!

• 8 gauge Power Cable
• OFC (100% Oxygen-Free Copper) material
• Full-spec hyper-flex cable design
• Plated in anti-corrosive 99.9% tin
• Length: 20 feet (6 meter)

Limited time!

Kicker KXMA900.5 (48KXMA9005)

1300W Peak (900W RMS) Class D KXM Series 5-Channel Marine Amplifier with Bass Remote

KXMA900.5 big
Go to item page Right Arrow Icon of Right Arrow

1300W Peak (900W RMS) Class D KXM Series 5-Channel Marine Amplifier with Bass Remote

• 75 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 400 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier

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

VIP Product Get $57.60 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $819.99
Save $244.03
-30% $575.96

In stock

Only 2 Left!

• 75 watts x 4 channel + 200 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 400 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 5-Channel Amplifier

Kicker 49VUL7X12

Empty Single 12" Vented Enclosure

49VUL7X12 big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Enclosure

• 12" Dual Ported Subwoofer Enclosure
• Durable Strong Birch Plywood construction
• Designed for 12-Inch SoloX L7X subwoofers

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

VIP Product Get $50.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $549.99
-9% $499.99

In stock

Kicker DBRC (51DBRC)

Dual-Amp Remote Level Bass Control Knob for Kicker Mono Amplifiers

51DBRC big
Go to item page Right Arrow Icon of Right Arrow

Dual-Amp Remote Level Bass Control Knob for Kicker Mono Amplifiers

• Controls 1-2 mono-channel amps with a 3.5mm level controller input
• Compatible with PTRTP and Hideaway powered sub enclosures
• Compatible with WXA, KEY, CXA, PXA and KPX-series amps
• Flush or surface-mountable
• Heavy-duty aluminum design with laser etching
• Single knob with high-end, metal look

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $69.99
-14% $59.99

Available

Ships in 10-14 days

• Controls 1-2 mono-channel amps with a 3.5mm level controller input
• Compatible with PTRTP and Hideaway powered sub enclosures
• Compatible with WXA, KEY, CXA, PXA and KPX-series amps
• Flush or surface-mountable
• Heavy-duty aluminum design with laser etching
• Single knob with high-end, metal look

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 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.

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

    2012 Ford Expedition

    2007 Audi RS4

    2003 Cadillac DeVille

    2003 Land Rover Discovery

    2005 Audi A6

    2018 BMW X6 M

    2014 Lexus IS250

    2005 Chrysler Sebring

    2003 Volvo XC70

    2012 Ram 1500

    Vehicle
    Store
    Delete

    2001 Harley Davidson FLSTSI Heritage Springer

    Vehicle
    Store
    Delete

    2015 Can-Am Commander 800R DPS

    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.