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2004 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 2004 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.

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Stinger SI421.5

1.5 ft. of 2-Channel 4000 Series RCA Interconnect Cable

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1.5 ft. of 2-Channel 4000 Series RCA Interconnect Cable

• 2-Channel 4000 Series RCA Interconnect Cable
• 1-1/2 ft. Cable Length
• Stinger Audiophile Grade
• Twisted Pair Construction
• Clear Protective Jacket
• Compact Connector Design
• Split-Tip Connector

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List price $19.00
-47% $9.99

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• 2-Channel 4000 Series RCA Interconnect Cable
• 1-1/2 ft. Cable Length
• Stinger Audiophile Grade
• Twisted Pair Construction
• Clear Protective Jacket
• Compact Connector Design
• Split-Tip Connector

Stinger SPT5210

Pro Classic 1/0 GA Input Output Shoc-Krome

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Pro Classic 1/0 GA Input Output Shoc-Krome

• Power Wire Coupler
• Ultimate Power Delivery
• Corrosion Resistant Shoc-Krome Plating

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List price $19.00
-37% $11.99

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• Power Wire Coupler
• Ultimate Power Delivery
• Corrosion Resistant Shoc-Krome Plating

Axxess AXFD-5V

12V to 5V Step Down Interface for Ford, Lincoln, and Mercury Vehicles

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12V to 5V Step Down Interface for Ford, Lincoln, and Mercury Vehicles

• 12-volt to 5-volt Step-Down Interface
• Fixes audible 'pop' when aftermarket stereo turns on factory amplifier
• Designed for use in Ford, Lincoln, and Mercury vehicles

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List price $31.99
-13% $27.99

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Only 3 Left!

• 12-volt to 5-volt Step-Down Interface
• Fixes audible 'pop' when aftermarket stereo turns on factory amplifier
• Designed for use in Ford, Lincoln, and Mercury vehicles

JL Audio M-SWMCPv3-2.375 (Open Box, Good)

ETXv3 Enclosed Speaker System Swivel Mount Fixture, for pipe diameter of 2.37"

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ETXv3 Enclosed Speaker System Swivel Mount Fixture, for pipe diameter of 2.37"

• JL Audio Tower Speaker Mounting Kit
• Clamp has an Inner Diameter of 2.375 Inches
• For JL Audio M880-ETXv3, M770-ETXv3 and MX770-ETXv3 Speaker Models

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List price $349.99
-40% $209.99

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Only 1 Left!

• JL Audio Tower Speaker Mounting Kit
• Clamp has an Inner Diameter of 2.375 Inches
• For JL Audio M880-ETXv3, M770-ETXv3 and MX770-ETXv3 Speaker Models

JL Audio RD800/6

800W RMS Class D RD Series 6-Channel Car Amplifier

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800W RMS Class D RD Series 6-Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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-17% $649.99

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Available Offers (2) for JL Audio RD800/6
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT46 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT46 Amp Kit! No code needed — discount applies automatically at checkout.

Bazooka MT-CL2-B

1-1/2" to 2" Marine Tubbie Quick Disconnect Clamps - Black

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1-1/2" to 2" Marine Tubbie Quick Disconnect Clamps - Black

• Quick Disconnect Clamps
• For Marine Use
• Designed to Fit Towers or Roll Bars with Widths 1-1/5" to 2"
• 360° Rotation
• Black

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List price $124.99
-28% $89.95

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Only 1 Left!

• Quick Disconnect Clamps
• For Marine Use
• Designed to Fit Towers or Roll Bars with Widths 1-1/5" to 2"
• 360° Rotation
• Black

Axxess AXGLI-R

2-Channel RCA Ground Loop Isolator

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2-Channel RCA Ground Loop Isolator

• 2-channel RCA ground loop isolator
• Easily eliminates unwanted ground loop noise
• No need for additional adapters
• Universal vehicle application

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List price $23.99
-13% $20.99

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• 2-channel RCA ground loop isolator
• Easily eliminates unwanted ground loop noise
• No need for additional adapters
• Universal vehicle application

Stinger SHT301

HPM Series Digital Battery Terminal with 1/0 or 4ga Outputs and Digital Volt Meter (Positive Only)

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HPM Series Digital Battery Terminal with 1/0 or 4ga Outputs and Digital Volt Meter (Positive Only)

• HPM Series 1/0 or 4ga Outputs with Digital Volt Meter
• Two (2) 1/0 Gauge or (2) 4 Gauge Output
• Monitor system voltage
• Ultimate power connection
• Multiple output design
• Positive terminals only

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List price $119.00
-52% $56.99

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• HPM Series 1/0 or 4ga Outputs with Digital Volt Meter
• Two (2) 1/0 Gauge or (2) 4 Gauge Output
• Monitor system voltage
• Ultimate power connection
• Multiple output design
• Positive terminals only

Kicker BT4 (46BT4)

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

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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

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List price $39.99
-25% $29.99

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Only 1 Left!

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

JBL ARENA 12 (JBLSUBAR12AM)

2400W Peak (800W RMS) 12” Arena Series Dual 2-or 4-ohm Car Subwoofer

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2400W Peak (800W RMS) 12” Arena Series Dual 2-or 4-ohm Car Subwoofer

• Peak Power: 2400 watts
• RMS Power: 800 watts
• Impedance: Dual 2 or 4 ohm
• Composite Paper Concave Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 6.75"
• Sensitivity: 87.6 dB

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List price $599.95
-8% $549.95

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Like New from: $467.46

Hertz S8 DSP

8-Channel Digital Sound Processor with Automatic Time Correction, Digital Equalizer, and High-Resolution Audio

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8-Channel Digital Sound Processor with Automatic Time Correction, Digital Equalizer, and High-Resolution Audio

• 8-Channel Digital Sound Processor
• 7-Band parametric equalizer
• Speaker level (high-level) inputs
• Bluetooth for for added control
• High-resolution audio
• Configurable via S8 DSP application/software

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List price $455.00
-8% $419.99

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• 8-Channel Digital Sound Processor
• 7-Band parametric equalizer
• Speaker level (high-level) inputs
• Bluetooth for for added control
• High-resolution audio
• Configurable via S8 DSP application/software

NVX STBXC32 (Open Box, Great)

32 sq. ft. Black Subwoofer Box/Trunk Liner Carpet with Adhesive Backing

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32 sq. ft. Black Subwoofer Box/Trunk Liner Carpet with Adhesive Backing

• Extremely durable fabric that will stand up to heavy usage
• Adhesive backing allows for an easier installation process
• Easy to cut, fit, and mold to desired shape or size
• Stain resistant
• Color: Black
• Carpet Thickness: 1/8 inch

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List price $62.49
-44% $34.99

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• Extremely durable fabric that will stand up to heavy usage
• Adhesive backing allows for an easier installation process
• Easy to cut, fit, and mold to desired shape or size
• Stain resistant
• Color: Black
• Carpet Thickness: 1/8 inch

JL Audio 10W3v3-4

500W RMS 10" W3v3 Series Single 4-ohm Subwoofer

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500W RMS 10" W3v3 Series Single 4-ohm Subwoofer

• RMS Power: 500 watts
• Impedance: Single 4 ohm
• Mineral-Filled Polypropylene Cone
• Nitrile Butadiene Rubber NBR Surround
• Mount depth: 5.93"
• Sensitivity: 84.87 dB

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$419.99

In stock

Used from: $348.59

Stinger SPT55302 (Chrome)

Multi GM Battery Terminal, One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs

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Multi GM Battery Terminal, One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs

• Multi GM Battery Terminal
• One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs
• For Use with GM Side Posts or Stinger Batteries
• High Power Connection
• Works on Both Positive and Negative Terminals

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List price $69.00
-49% $34.99

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• Multi GM Battery Terminal
• One 1/0 Gauge, One 4 Gauge and Two 8 Gauge Outputs
• For Use with GM Side Posts or Stinger Batteries
• High Power Connection
• Works on Both Positive and Negative Terminals

EXCLUSIVE

Belva BPKG212v2 Dual 12" Bass Package

1200W Bass Kit Includes: 2 12" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

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1200W Bass Kit Includes: 2 12" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

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List price $323.99
-14% $279.99

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Used from: $171.49

• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

Cobra ACXT645

Splashproof 2-Way Walkie Talkies with Built-in LED Flashlight

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Splashproof 2-Way Walkie Talkies with Built-in LED Flashlight

• 2-Way Walkie Talkies with LED Flashlight
• IPX4-rated splashproof and weather-resistant
• 22 Channels and 121 Privacy Codes
• 24/7 access to NOAA weather alerts
• Voice-Activated Transmission (VOX)
• Patented VibrAlert for incoming transmissions
• Built-In LED Flashlight

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List price $79.95
-25% $59.99

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• 2-Way Walkie Talkies with LED Flashlight
• IPX4-rated splashproof and weather-resistant
• 22 Channels and 121 Privacy Codes
• 24/7 access to NOAA weather alerts
• Voice-Activated Transmission (VOX)
• Patented VibrAlert for incoming transmissions
• Built-In LED Flashlight

Belva BCC2218

22/18 Gauge Nylon Crimp Caps, 25/pack

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22/18 Gauge Nylon Crimp Caps, 25/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: 25

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List price $7.99
-50% $3.99

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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: 25

SMD Single Distribution Block

Power/ Ground Distribution Block (Half Block)

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Power/ Ground Distribution Block (Half Block)

• Easy-to-use bus/bar distribution block
• 6 Ring Terminal Connections
• Use when installing multiple amps
• 3/4" PVC body
• 1/4" aluminum bus bar
• 3/16" Clear acrylic cover
• Use as a grounding block or positive distribution

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-24% $52.99

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• Easy-to-use bus/bar distribution block
• 6 Ring Terminal Connections
• Use when installing multiple amps
• 3/4" PVC body
• 1/4" aluminum bus bar
• 3/16" Clear acrylic cover
• Use as a grounding block or positive distribution

Limited time!

Pioneer GM-DX874

1200W Peak (600W RMS) Class D GM Series 4 Channel Car Amplifier with Remote Bass

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1200W Peak (600W RMS) Class D GM Series 4 Channel Car Amplifier with Remote Bass

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable 4-Channel Amplifier

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List price $300.00
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-27% $220.00

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Dual MANT16B

16" Marine AM/FM Antenna with Swivel Base and 54" Cable (Black)

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16" Marine AM/FM Antenna with Swivel Base and 54" Cable (Black)

• Marine stereo AM/FM antenna with flexible mast
• Includes 180° swivel base and 54" antenna cable
• Made with durable steel and corrosion-resistant rubber cover

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• Marine stereo AM/FM antenna with flexible mast
• Includes 180° swivel base and 54" antenna cable
• Made with durable steel and corrosion-resistant rubber cover

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    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2004 Hummer H1?

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

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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.