Garage
Shop

2003 Hummer H1

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 Hummer H1

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

NVX VCW152v3RC

Recone Kit for VCW152v3 Version 3 Subwoofers

VCW152v3RC big
Go to item page Right Arrow Icon of Right Arrow

Recone Kit for VCW152v3 Version 3 Subwoofers

• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 2-ohm
• CA glue adhesive is NOT included

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $131.99
-17% $109.99

In stock

Only 3 Left!

• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 2-ohm
• CA glue adhesive is NOT included

NVX VBTERM2

Round Push Style Outer Design Terminal Cups With Chrome-Plated Contacts

VBTERM2 big
Go to item page Right Arrow Icon of Right Arrow

Round Push Style Outer Design Terminal Cups With Chrome-Plated Contacts

• Universal Round Chrome-plated Terminal Cup for Speaker & Subwoofer boxes
• Chrome-plated contacts for optimal signal transfer
• Screw binding posts for a tight secure connection
• Positive (Red) and negative (Black) indicators to ensure proper wiring
• Easy to install and use

shipping truck icon Free shipping in USA. Provide zip for delivery date.
3
List price $9.99
-50% $4.99

In stock

• Universal Round Chrome-plated Terminal Cup for Speaker & Subwoofer boxes
• Chrome-plated contacts for optimal signal transfer
• Screw binding posts for a tight secure connection
• Positive (Red) and negative (Black) indicators to ensure proper wiring
• Easy to install and use

NVX VPRO35TW

240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

VPRO35TW big
Go to item page Right Arrow Icon of Right Arrow

240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

• 3.5" Pro Audio Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

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 $47.99
-38% $29.99

In stock

Used from: $17.99

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.

Kenwood KCA-RC35MR

Wired Marine Remote Control for KMR-700U, KMR-550U, KMR-D765BT and KMR-350U

KCA-RC35MR big
Go to item page Right Arrow Icon of Right Arrow

Wired Marine Remote Control for KMR-700U, KMR-550U, KMR-D765BT and KMR-350U

• Wired Remote Control
• Designed for Marine Environments
• Compatible with Kenwood Marine & In-Dash Head Units
• Includes Mounting Hardware

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

VIP Product Get $10.90 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

8
List price $130.00
-16% $109.00

Available

Ships in 10-14 days

• Wired Remote Control
• Designed for Marine Environments
• Compatible with Kenwood Marine & In-Dash Head Units
• Includes Mounting Hardware

Deaf Bonce Apocalypse ATOM-900.2 PRO

900W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

ATOM-900.2 PRO big
Go to item page Right Arrow Icon of Right Arrow

900W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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

VIP Product Get $22.99 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$229.90

In stock

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

Only 3 Left!

JL Audio MLC-RW

Marine RGB Lighting Controller

MLC-RW big
Go to item page Right Arrow Icon of Right Arrow

Marine RGB Lighting Controller

• Works with your JL Audio LED speakers
• Control lighting colors and the intensity of your lighting
• Compact system can be installed in almost any application
• Built-in over-current and short-circuit protection
• Built-in voltage and temperature monitoring

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

1
$349.99

In stock

Only 1 Left!

Used from: $299.99
Limited time!

Rockford Fosgate RFC10HB 10 Farad Hybrid Capacitor

Hybrid Digital Stiffening Capacitor and Distribution Block

RFC10HB big
Go to item page Right Arrow Icon of Right Arrow

Hybrid Digital Stiffening Capacitor and Distribution Block

• 10 farad Hybrid Digital Capacitor
• Increases quality of sound
• Increases level of bass
• Platinum plated

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

VIP Product Get $53.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

46
List price $709.99
Save $180.00
-25% $529.99

In stock

• 10 farad Hybrid Digital Capacitor
• Increases quality of sound
• Increases level of bass
• Platinum plated

NVX XW4BL5

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

XW4BL5 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 (Blue)

• 5 feet 4 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

29
List price $29.99
-33% $19.99

In stock

Only 3 Left!

Used from: $10.49

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

NVX XKIT42

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

XKIT42 big
Go to item page Right Arrow Icon of Right Arrow

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 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 100 amp fuse
• CEA-2015 and BC5W2 Compliant

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

VIP Product Get $11.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

124
List price $143.99
-24% $109.99

In stock

Continue to cart

Available Offers (2) for NVX XKIT42
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! 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.

Audiovox VODP10

10.1" High-Resolution Digital LED Backlit Overhead Monitor with Two Headphones

VODP10 big
Go to item page Right Arrow Icon of Right Arrow

10.1" High-Resolution Digital LED Backlit Overhead Monitor with Two Headphones

• 10.1" High-Resolution Digital LED Backlit Overhead Monitor
• Built-in DVD, USB and HDMI inputs
• Dual channel IR headphone transmitter with 2 headphones
• Display Type: TFT Active Matrix LCD
• Screen Resolution: 1024 x 600

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

VIP Product Get $58.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $649.99
-11% $579.99

Available

Ships in 10-14 days

• 10.1" High-Resolution Digital LED Backlit Overhead Monitor
• Built-in DVD, USB and HDMI inputs
• Dual channel IR headphone transmitter with 2 headphones
• Display Type: TFT Active Matrix LCD
• Screen Resolution: 1024 x 600

Escort Redline 360c

Radar and Laser Detector with Android Auto and Apple CarPlay Support

Redline 360c big
Go to item page Right Arrow Icon of Right Arrow

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

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

VIP Product Get $80.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $899.99
-11% $799.95

In stock

• 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

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)

MDFD12 big
Go to item page Right Arrow Icon of Right Arrow

Dual 12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/Polyfil (2.46 cu ft Airspace - 12SQB)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

120
List price $119.99
-17% $99.99

In stock

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

Stinger SI4617

17 ft. (5.1 meters) of 6-Channel 4000 Series RCA Interconnect Cables

SI4617 big
Go to item page Right Arrow Icon of Right Arrow

17 ft. (5.1 meters) of 6-Channel 4000 Series RCA Interconnect Cables

• 6-Channel 4000 Series RCA Interconnect Cables
• 17 ft. (5.1 meter) Cables
• Stinger Audiophile Grade
• Twisted Pair Construction
• Perfect for 5-Channel Amplifiers
• Durable

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

14
List price $49.00
-14% $41.99

In stock

• 6-Channel 4000 Series RCA Interconnect Cables
• 17 ft. (5.1 meter) Cables
• Stinger Audiophile Grade
• Twisted Pair Construction
• Perfect for 5-Channel Amplifiers
• Durable

Sundown Audio GT-R1 (GT1R8)

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

S-GT1R8 big
Go to item page Right Arrow Icon of Right Arrow

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

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

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 $47.99
-17% $39.99

In stock

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

Scosche BOBAZT Stereo Connector Kit

Great Connection Kit for Stereo to Car Wire Harness with Zip Ties and Butt Connectors

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

Great Connection Kit for Stereo to Car Wire Harness with Zip Ties and Butt Connectors

• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

27
$9.95

In stock

Only 1 Left!

• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

Rockford Fosgate Punch PEQ

Wired Bass/Treble Equalization Remote Controller for Select 2007-2025 Punch and Power Amplifiers

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

Wired Bass/Treble Equalization Remote Controller for Select 2007-2025 Punch and Power Amplifiers

• Wired Bass/Treble Remote for select 2007-2025 Punch and Power amplifiers
• Controls bass on rear outputs of 4-channel amplifiers
• Conveniently mount under dash, inside center console or glovebox

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

62
$49.99

In stock

• Wired Bass/Treble Remote for select 2007-2025 Punch and Power amplifiers
• Controls bass on rear outputs of 4-channel amplifiers
• Conveniently mount under dash, inside center console or glovebox

MTX Audio RT8PT

360W Peak (120W RMS) Loaded Single 8" Vented Amplified Bass Tube Enclosure

RT8PT big
Go to item page Right Arrow Icon of Right Arrow

360W Peak (120W RMS) Loaded Single 8" Vented Amplified Bass Tube Enclosure

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS (360 watts Peak)
• Built-In amplifier
• Variable bass boost
• Speaker-Level Inputs
• EBC wired remote bass level control

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

14
List price $219.95
-9% $199.95

In stock

Used from: $119.97

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS (360 watts Peak)
• Built-In amplifier
• Variable bass boost
• Speaker-Level Inputs
• EBC wired remote bass level control

JL Audio HD-RLC

Flush-Mount Wired Bass Remote Controller for JL Audio HD, MHD and XDM Amplifiers

HD-RLC big
Go to item page Right Arrow Icon of Right Arrow

Flush-Mount Wired Bass Remote Controller for JL Audio HD, MHD and XDM Amplifiers

• Wired Bass Remote Controller
• Compatible with select JL Audio HD, MHD and XDM amplifiers
• Flush-mountable installation
• 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

18
$59.99

In stock

• Wired Bass Remote Controller
• Compatible with select JL Audio HD, MHD and XDM amplifiers
• Flush-mountable installation
• Color: Black

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 H1

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2003 Hummer H1?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your H1.

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

    1985 Chevrolet S10

    2020 Nissan Maxima

    2003 Hummer H1

    2023 Chevrolet Blazer

    1976 Volvo 244

    2015 Audi Allroad

    1992 Dodge Shadow

    2005 Isuzu Ascender

    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.