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1975 GMC C2500 Pickup

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 1975 GMC C2500 Pickup

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 SwitchHub (SPXSH440)

100A 4-Channel High Current Solid State Relay System

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100A 4-Channel High Current Solid State Relay System

• 4-Channel SwitchHub Solid-State Relay
• Single 40-amp output and triple 20-amp outputs
• 100-amp combined continuous capacity
• Outputs can be triggered independently

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List price $158.99
-13% $137.99

In stock

• 4-Channel SwitchHub Solid-State Relay
• Single 40-amp output and triple 20-amp outputs
• 100-amp combined continuous capacity
• Outputs can be triggered independently

2 Pack of 100 Amp Nickel-Plated ANL Fuse (Belva BANL100)

Two fuses per order. High quality 100 Amp ANL Fuses

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Two fuses per order. High quality 100 Amp ANL Fuses

• 100A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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List price $7.99
-50% $3.99

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• 100A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

Belva BST1008

Pair of 10 Gauge Spade Terminals, #8 Opening with Nickel Plated Brass (1 Black & 1 Red)

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Pair of 10 Gauge Spade Terminals, #8 Opening with Nickel Plated Brass (1 Black & 1 Red)

• Spade Terminals
• 10 Gauge • 1 Red & 1 Black
• Nickel Plated
• Resealable Polybag

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List price $3.99
-50% $1.99

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• Spade Terminals
• 10 Gauge • 1 Red & 1 Black
• Nickel Plated
• Resealable Polybag

Install Bay 2" Round Terminal Cup (TCRBG2)

Round Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

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Round Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

• Universal round terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

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List price $7.99
-13% $6.99

In stock

• Universal round terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

Limited time!

Infinity Kappa 103WDSSI (INFSUBKA103WDSSIAM)

1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

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1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1350 watts
• RMS Power: 450 watts
• Impedance: Single 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 6-1/4"
• Sensitivity: 91 dB

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List price $359.95
Save $230.00
-64% $129.95

In stock.

Used from: $139.96

Heise HE-BD22

200W Universal 22" Blackout Series Dual Row 40 LED Light Bar

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200W Universal 22" Blackout Series Dual Row 40 LED Light Bar

• Universal 22" Double Row LED Light Bar
• Water-resistant IPX-67 Rating
• Flood/Spot Combo Beam Pattern
• Integrated epoxy-encapsulated electronics
• Includes rear/side brackets and mounting hardware

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List price $464.99
-10% $417.99

In stock.

• Universal 22" Double Row LED Light Bar
• Water-resistant IPX-67 Rating
• Flood/Spot Combo Beam Pattern
• Integrated epoxy-encapsulated electronics
• Includes rear/side brackets and mounting hardware

Limited time!

NVX XAPK1D

Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Dual Amplifier Power Wiring Kit for Amplifiers up to 4000 Watts

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Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Dual Amplifier Power Wiring Kit for Amplifiers up to 4000 Watts

• 1/0 Gauge Dual Amplifier Power Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• Two brass and satin chrome distribution blocks
• CEA-2015 and BC5W2 Compliant

15% off an NVX XCAP10H w/ Select Amp Kits
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List price $275.99
-17% $229.99

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Available Deal
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Eligible items

Shop items below for 15% off up to $100 discount on Get 15% off an NVX XCAP10H


• 1/0 Gauge Dual Amplifier Power Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• Two brass and satin chrome distribution blocks
• CEA-2015 and BC5W2 Compliant

Stinger SGP901351

135 Amp Circuit Breaker w/ Push Button Reset/Kill Switch

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135 Amp Circuit Breaker w/ Push Button Reset/Kill Switch

• 135 Amp Circuit Breaker
• Push Button Reset/Kill Switch
• Water resistant housing
• Protective rubber bolts caps
• Easily mount on firewall or other panels

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List price $139.00
-53% $65.99

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Only 3 Left!

• 135 Amp Circuit Breaker
• Push Button Reset/Kill Switch
• Water resistant housing
• Protective rubber bolts caps
• Easily mount on firewall or other panels

NVX XLOC66X

6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

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6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

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List price $101.99
-12% $89.99

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Used from: $62.99

• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

Fusion NRX300

Wired Remote Control for All Fusion Marine Stereos

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Wired Remote Control for All Fusion Marine Stereos

• NMEA 2000-certified remote/repeater
• 2.6” monochrome LCD screen
• IPx7 waterproof rating
• Multi‐Zone technology
• Plug-and-play setup

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$219.99

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Only 2 Left!

• NMEA 2000-certified remote/repeater
• 2.6” monochrome LCD screen
• IPx7 waterproof rating
• Multi‐Zone technology
• Plug-and-play setup

Metra 82-4400

1/2" Universal 6.5" to 6.75" Plastic Speaker Spacer Rings

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1/2" Universal 6.5" to 6.75" Plastic Speaker Spacer Rings

• Works with Most 5-1/4" Speakers
• Factory Style Finishes
• Heavy Duty ABS Plastic
• Works with 6" to 6.5" Speakers

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-43% $12.99

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• Works with Most 5-1/4" Speakers
• Factory Style Finishes
• Heavy Duty ABS Plastic
• Works with 6" to 6.5" Speakers

Earthquake Sound HoLeeS-12

10000W 12" HoLeeS Series Dual 1-ohm Subwoofer

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10000W 12" HoLeeS Series Dual 1-ohm Subwoofer

• 10,000W Peak
• 5,000W RMS
• Poly-ether Wide Edge Surround
• Triangular Lattice Design
• Spider Ring Design for Increased Linear Spider Position
• PSP Terminal for Easy and Quick Wiring
• Aluminum Bobbin Voice Coil

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9
List price $2199.99
-16% $1,849.99

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Metra 107-UN02 Dash Kit

Install a new Double-DIN car stereo (Matte Black)

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Install a new Double-DIN car stereo (Matte Black)

• Double-DIN Dash Kit
• Painted scratch-resistant matte black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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List price $85.99
-41% $50.99

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Only 2 Left!

• Double-DIN Dash Kit
• Painted scratch-resistant matte black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

NVX NDA15001

3000W Peak (1500W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

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3000W Peak (1500W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

• 670 watts x 1 channel @ 4 ohm
• 1100 watts x 1 channel @ 2 ohm
• 1500 watts x 1 channel @ 1 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $287.99
-31% $199.99

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Used from: $129.49

Stinger SGP32

200 Amp High Current Power Relay Battery Isolator

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200 Amp High Current Power Relay Battery Isolator

• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

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List price $229.00
-52% $108.99

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• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

Install Bay PSP3

3" x 12" ABS Port Tube Kit

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3" x 12" ABS Port Tube Kit

• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 3"W x 12"L
• Durable ABS plastic construction

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• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 3"W x 12"L
• Durable ABS plastic construction

Belva BBTR1 Pioneer, Clarion and Jensen Navigation Video Bypass

Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

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Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

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-47% $7.99

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•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

Wet Sounds ST-ADP-SLIDER BRACKET

Slider Mounting Bracket for Stealth HD and XT Soundbars

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Slider Mounting Bracket for Stealth HD and XT Soundbars

• Slider mounting bracket for Stealth HD and XT soundbars
• CNC'd from billet aluminum for extra durability
• Allows adjusting of soundbar mounting width
• Includes brackets, bolts, lock-washers, and flat-washers (2 each)

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$54.99

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Only 1 Left!

• Slider mounting bracket for Stealth HD and XT soundbars
• CNC'd from billet aluminum for extra durability
• Allows adjusting of soundbar mounting width
• Includes brackets, bolts, lock-washers, and flat-washers (2 each)

Race Sport 9005TLED

Terminator Series 9005 Fan-less LED Conversion Headlight Kit

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Terminator Series 9005 Fan-less LED Conversion Headlight Kit

• See 2-3 times further than stock lighting systems
• Increase stopping distance by 200%
• LED technology provides instant on/off light with no ramp-up time
• Fanless heat-sink technology

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List price $109.00
-18% $89.00

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• See 2-3 times further than stock lighting systems
• Increase stopping distance by 200%
• LED technology provides instant on/off light with no ramp-up time
• Fanless heat-sink technology

NVX XW0BL25

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

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

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

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List price $199.99
-15% $169.99

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

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    FAQ for Universal-Fit Audio & Electronics in 1975 C2500 Pickup

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1975 GMC C2500 Pickup?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your C2500 Pickup.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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