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2012 GMC Sierra 3500 HD

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 2012 GMC Sierra 3500 HD

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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JBL JBLSUBBPACCKITAM

BassPro Go Vehicle Installation Kit

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BassPro Go Vehicle Installation Kit

• BassPro Go Vehicle Installation Kit
• Designed for installing a JBL BassPro Go powered subwoofer in another vehicle
• Vehicle mounting bracket, hardware and harnesses included

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List price $139.95
-21% $109.95

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• BassPro Go Vehicle Installation Kit
• Designed for installing a JBL BassPro Go powered subwoofer in another vehicle
• Vehicle mounting bracket, hardware and harnesses included

2 Pack of 300 Amp Nickel-Plated ANL Fuse (Belva BANL300)

Two fuses per order. High quality 300 Amp ANL Fuses

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Two fuses per order. High quality 300 Amp ANL Fuses

• 300A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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• 300A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

Rockford Fosgate PP4-X

250W Peak (125W RMS) 4-Ohm Passive Crossover

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250W Peak (125W RMS) 4-Ohm Passive Crossover

• Passive Crossover
• 250W Max and 125W RMS
• Dual Woofer Outputs
• Includes Mounting Hardware
• Designed for Punch Pro Midrange Drivers and Tweeters

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$99.99

In stock

• Passive Crossover
• 250W Max and 125W RMS
• Dual Woofer Outputs
• Includes Mounting Hardware
• Designed for Punch Pro Midrange Drivers and Tweeters

DS18 EQX7PRO

7-Band Graphic Equalizer with High Level Input, Auto Turn-on and LED Indicator

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7-Band Graphic Equalizer with High Level Input, Auto Turn-on and LED Indicator

• 7 band-Band Graphic Equalizer
• 3 Sets of preamp outputs (front, rear, and subwoofer)
• 8 volts Max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

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List price $143.99
-17% $119.95

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• 7 band-Band Graphic Equalizer
• 3 Sets of preamp outputs (front, rear, and subwoofer)
• 8 volts Max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

Escort Coiled SmartCord Blue

Direct Power Coiled SmartCord with Blue LED Lights and Built-In Mute Button

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Direct Power Coiled SmartCord with Blue LED Lights and Built-In Mute Button

• Direct Power Smartcord for Escort Radar Detectors
• Blue LED Light Notifies You of Alerts
• Built-in Mute Button to Silence Audio Alerts
• Works with all current generation escort windshield mounted detectors

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• Direct Power Smartcord for Escort Radar Detectors
• Blue LED Light Notifies You of Alerts
• Built-in Mute Button to Silence Audio Alerts
• Works with all current generation escort windshield mounted detectors

Belva BLPCAM2

License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

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License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Resolution: 720 x 480 
• Waterproof: Yes
• Nightvision: Infrared LED's

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• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Resolution: 720 x 480 
• Waterproof: Yes
• Nightvision: Infrared LED's

NVX XRTC4

4 Gauge Solid Copper Ring Terminals with Shrink Tubing - 4 Pack

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4 Gauge Solid Copper Ring Terminals with Shrink Tubing - 4 Pack

• 4 Gauge Solid Copper Ring Terminals
• Shrink Tubing
• Pure Copper with Nickel plating for optimal Current transfer
• Color: Black
• Count: 4

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-20% $7.99

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• 4 Gauge Solid Copper Ring Terminals
• Shrink Tubing
• Pure Copper with Nickel plating for optimal Current transfer
• Color: Black
• Count: 4

AudioControl DM-810

10-Channel Matrix Digital Sound Processor with AccuBASS

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10-Channel Matrix Digital Sound Processor with AccuBASS

• Premium matrix digital sound processor
• 8-Channel preamp input and 10-Channel preamp output
• 30-Band equalizer for adjusting gain, delay, and polarity
• High-pass, low-pass and band-pass crossovers
• Features GTO signal sensing, MILC clip detection, and AccuBASS
• Also features signal summing and signal delay

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Used from: $663.20

• Premium matrix digital sound processor
• 8-Channel preamp input and 10-Channel preamp output
• 30-Band equalizer for adjusting gain, delay, and polarity
• High-pass, low-pass and band-pass crossovers
• Features GTO signal sensing, MILC clip detection, and AccuBASS
• Also features signal summing and signal delay

SMD 2 Channel Heavy Duty Square Speaker Terminal (Grade 8)

Two Channel Square Speaker Terminal with Grade 8 Terminals, 3/4" PVC (Black)

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Two Channel Square Speaker Terminal with Grade 8 Terminals, 3/4" PVC (Black)

• Heavy duty terminals for serious applications
• Lightweight 3/4" PVC
• Won't break or leak under high pressure
• 5/16" Bolt Terminal
• All Grade 8 Hardware
• Two Channel

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• Heavy duty terminals for serious applications
• Lightweight 3/4" PVC
• Won't break or leak under high pressure
• 5/16" Bolt Terminal
• All Grade 8 Hardware
• Two Channel

Belva BTK106

Six Piece Installer's Panel Removal Installation Tool Kit for Stereo, Speakers and Car Audio Installs

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Six Piece Installer's Panel Removal Installation Tool Kit for Stereo, Speakers and Car Audio Installs

• Six Piece Installer's Removal Tool Kit
• Durable Nylon Plastic

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• Six Piece Installer's Removal Tool Kit
• Durable Nylon Plastic

NVX VAD10004 v2 (VAD10004v2)

1000W RMS Class D Full Range 4-Channel Car/Marine/Powersports Amplifier

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1000W RMS Class D Full Range 4-Channel Car/Marine/Powersports Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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-17% $279.99

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Available Offers (2) for NVX VAD10004 v2 (VAD10004v2)
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Dads & Grads Sale! Save 15% at Checkout!
List price $335.99
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$237.99 with coupon | Price details
2026-06-30 23:59:00
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.

NVX SQW124

1200W Peak (600W RMS) 12" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

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1200W Peak (600W RMS) 12" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

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List price $359.99
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• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

iBeam TE-MMS

Universal Dual Screw-Mounted Monitor Mount

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Universal Dual Screw-Mounted Monitor Mount

• Universal dual-screw monitor mount
• 4" slightly curved neck from mounting surface
• Mounts to any flat surface

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$52.99

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Ships in 10-14 days

• Universal dual-screw monitor mount
• 4" slightly curved neck from mounting surface
• Mounts to any flat surface

BOYO Vision VTR24MHD

2.4" Rear View Mirror with HD Camera and 1-Channel Digital Video Recorder

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2.4" Rear View Mirror with HD Camera and 1-Channel Digital Video Recorder

• 2.4" Rear view mirror with front HD camera
• Adjustable 1080P HD front facing camera
• 1-Channel FHD DVR (Digital Video Recorder)
• Built-in motion detection, loop recording, park guide
• Includes built-in G-sensor, mic, and speaker
• Easily straps onto original mirror

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List price $123.00
-10% $110.70

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• 2.4" Rear view mirror with front HD camera
• Adjustable 1080P HD front facing camera
• 1-Channel FHD DVR (Digital Video Recorder)
• Built-in motion detection, loop recording, park guide
• Includes built-in G-sensor, mic, and speaker
• Easily straps onto original mirror

NVX XAPK4

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire for Amplifiers up to 1500 Watts

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

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Available Offers (2) for NVX XAPK4
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.

NVX VCW152v3RC

Recone Kit for VCW152v3 Version 3 Subwoofers

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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

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• 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

JL Audio SGRU-13

Mesh Grille for JL Audio 13" W3v3 and TW5v2 Subwoofers

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Mesh Grille for JL Audio 13" W3v3 and TW5v2 Subwoofers

• 13" Grille Made Specifically for the JL Audio 13W1v2, 13W3v3, or 13TW5 Sub
• Provides the Best Protection Possible
• Top-Notch JL Audio Quality
• Metal Mesh Grille Painted Black

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$64.99

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• 13" Grille Made Specifically for the JL Audio 13W1v2, 13W3v3, or 13TW5 Sub
• Provides the Best Protection Possible
• Top-Notch JL Audio Quality
• Metal Mesh Grille Painted Black

Metra 95-9999

Double DIN Stereo Installation Trim Kit

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Double DIN Stereo Installation Trim Kit

• Universal 4" Double DIN Installation Trim Kit
• Accommodates ISO double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

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List price $33.99
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• Universal 4" Double DIN Installation Trim Kit
• Accommodates ISO double DIN mount
• Painted to match factory dash color
• High-Grade ABS plastic construction
• Factory style texture

Encore WK-2+ (WK-2-PLUS)

Vehicle Alarm/Remote Start 2-Window Roll-up/down Automation Kit

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Vehicle Alarm/Remote Start 2-Window Roll-up/down Automation Kit

• Universal Vehicle Alarm/Remote Start Power Window Automation Kit
• Automatic Roll-up/down windows from your Alarm/Remote Start controller
• Can be used for sunroof
• Compatible with All Encore Remote Start and Security Systems
• Compatible with All Encore Remote Start and Security Systems

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List price $99.99
-76% $23.99

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• Universal Vehicle Alarm/Remote Start Power Window Automation Kit
• Automatic Roll-up/down windows from your Alarm/Remote Start controller
• Can be used for sunroof
• Compatible with All Encore Remote Start and Security Systems
• Compatible with All Encore Remote Start and Security Systems

Metra 44-EC6R Antenna Extension

6" Universal Antenna Extension Cable with Right Angle Male

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6" Universal Antenna Extension Cable with Right Angle Male

• Universal Antenna Extender
• Extends Antenna 6" (.5 ft.)
• Right Angle Male Connector

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• Universal Antenna Extender
• Extends Antenna 6" (.5 ft.)
• Right Angle Male Connector

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    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2012 GMC Sierra 3500 HD?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your Sierra 3500 HD.

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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
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.