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2003 GMC Sierra 2500 HD


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40-GM10 main

Metra 40-GM10

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

45
GM1590DDB main

Scosche GM1590DDB / GM1590AB Dash Kit

Install a new Double-DIN car stereo in select 1994-2012 vehicles from Chevrolet, GMC, Buick (Black)

58
MDA1B main

Scosche MDA1B Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

366
-33.07%

$5.99

List price $8.95

SOCGM-17C main

Crux SOCGM-17C Wiring Interface

Install a new car stereo and retain safety chimes and other factory features in select 2000-2013 vehicles from Chevrolet, GMC, Pontiac

5
-35.71%

$66.15

List price $102.90

XBAF65 main

NVX XBAF65

Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

116
-37.15%

$21.99

List price $34.99

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

20
-33.50%

$399.00

List price $600.00

DPX505BT main

Kenwood DPX505BT

Double DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

18
-22.17%

$179.00

List price $230.00

Limited time!
DMH-241EX main

Pioneer DMH-241EX

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and Built-in Alexa

20
-35.00%

$194.99

List price $300.00

Limited time!
XAV-AX3200 main

Sony XAV-AX3200

6.95" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, WebLink, Apple CarPlay, and Android Auto (SiriusXM Ready)

14
-25.50%

$298.00

List price $399.99

DPX305MBT main

Kenwood DPX305MBT

Double DIN Digital Media Receiver with Bluetooth and Built-in Alexa (SiriusXM Ready)

15
-20.50%

$159.00

List price $200.00

Shop all 2003 GMC Sierra 2500 HD Car Audio, Speakers, & Electronics

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Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

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6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.8" WVGA Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 2 volts preamp outputs
• 13-Band Customizable Graphic Equalizer
• SiriusXM Satellite Radio Ready
• Easy to use graphic user interface

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Fits your Sierra 2500 HD
3
List price $420.00
-19% $339.99

In stock

PAC AAI-GM12

Dual Auxiliary Audio Input Interface for select 2000-2012 vehicles from Chevrolet, GMC, Pontiac

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Dual Auxiliary Audio Input Interface for select 2000-2012 vehicles from Chevrolet, GMC, Pontiac

• Dual auxiliary audio input interface
• Allows for direct interface of any pre-amp level audio source to the factory radio
• Compatible with select 2000-2012 vehicles from Chevrolet, GMC, Pontiac

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5
List price $119.00
-54% $54.99

In stock

• Dual auxiliary audio input interface
• Allows for direct interface of any pre-amp level audio source to the factory radio
• Compatible with select 2000-2012 vehicles from Chevrolet, GMC, Pontiac

Limited time!

NVX XBAF65

Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

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Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

• 6.5" Self-Adhesive Foam Speaker Baffle Ring Kit
• Waterproof foldable silicone baffles with egg crate foam
• Foldable rings allow for perfect fitment at varying depths
• Designed for use with 6.5" speakers
• Pack of 2

Free Baffles with Select Speakers Shop deal
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Fits your Sierra 2500 HD
116
List price $34.99
-37% $21.99

In stock

Used from: $15.39 Like New from: $17.99
Lowest price in 30 days

NVX VSPTW

450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

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450W Peak (150W RMS) 1" V-Series Silk Dome Tweeters with External Crossovers

• 1" V Series Dome Tweeters
• 225 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

Fits select models only.
Add details to confirm fitment.
29
List price $59.99
-17% $49.99 /pair

In stock

Remote Start for 2003-2007 Chevy Silverado, GMC Sierra and SUV

Easy DIY Remote Starter Kit for Key-to-Start Vehicles Only, Takes Less Than 1 Hour to Install (RSGM12)

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Easy DIY Remote Starter Kit for Key-to-Start Vehicles Only, Takes Less Than 1 Hour to Install (RSGM12)

• Compatible with select 2003-2007 vehicles from GMC, Cadillac Key-to-Start vehicles
• Not compatible with Push-to-Start Ignition
• Plug and play installation
• No wires to cut or splice
• Works with your OEM remote
• Programmer included

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Fits your Sierra 2500 HD
List price $369.99
-16% $309.99

In stock

• Compatible with select 2003-2007 vehicles from GMC, Cadillac Key-to-Start vehicles
• Not compatible with Push-to-Start Ignition
• Plug and play installation
• No wires to cut or splice
• Works with your OEM remote
• Programmer included

Atrend A152-10

Empty Dual 10" Sealed Subwoofer Enclosure for select 1997-2007 vehicles from GMC, Chevrolet

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Empty Dual 10" Sealed Subwoofer Enclosure for select 1997-2007 vehicles from GMC, Chevrolet

• 10" Dual Sealed Subwoofer Enclosure
• Built for select 1997-2007 vehicles from GMC, Chevrolet
• 3/4" Medium Density Fiberboard (MDF) construction
• Custom down-firing fit under rear driver side seat
• Premium, ultra-tough coat spray-liner finish
• Constructed using specially formulated aliphatic wood glue
• Total box volume: 2.44 cubic feet

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2
List price $319.99
-29% $225.99

In stock

Mean Green Alternators MG8247HD

300 Amp High Output Alternator for select 1996-2007 vehicles from GMC, Chevrolet, Hummer

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300 Amp High Output Alternator for select 1996-2007 vehicles from GMC, Chevrolet, Hummer

• Easy 5-minute installation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

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$719.99

In stock.

• Easy 5-minute installation
• Compatible with select 1996-2007 vehicles from GMC, Chevrolet, Hummer Vehicles
• Up to 300% more charging power
• Precision balanced for smooth operation
• Steel rotor shaft
• Heavy duty solid copper starter windings
• Multi-function integrated regulator
• High output alternator

Metra 40-GM10

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

40-GM10 big
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Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

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Fits your Sierra 2500 HD
45
$8.99

In stock

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

Limited time!

Pioneer DMH-W3050NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

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6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.8" Capacitive Touchscreen Display
• Wireless Apple CarPlay and Android Auto Compatible
• Built-in Amazon Alexa
• 3 sets of 4 volts preamp outputs
• 13-Band Customizable Graphic Equalizer
• SiriusXM Satellite Radio Ready
• iDatalink Maestro compatibility
• Built-in Wi-fi

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Fits your Sierra 2500 HD
1
List price $620.00
Save $150.01
-24% $469.99

In stock

Metra 70-2054

Amplifier Bypass Harness for select 1998-2009 vehicles from GMC, Chevrolet, Cadillac

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Amplifier Bypass Harness for select 1998-2009 vehicles from GMC, Chevrolet, Cadillac

• Amplifier bypass harness for select 1998-2009 vehicles from GMC, Chevrolet, Cadillac
• Includes 17 ft. amplifier bypass harness
• Color coded wires with printed labels for easy installation

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7
List price $124.99
-42% $72.99

In stock

• Amplifier bypass harness for select 1998-2009 vehicles from GMC, Chevrolet, Cadillac
• Includes 17 ft. amplifier bypass harness
• Color coded wires with printed labels for easy installation

Limited time!

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

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6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.8" WVGA Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready
• Short chassis for flexible installation

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Install kits available for this stereo

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Fits your Sierra 2500 HD
20
List price $600.00
Save $201.00
-34% $399.00

In stock

Like New from: $424.15

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.8" WVGA Display
• Apple CarPlay and Android Auto Compatible
• 3 sets of 5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready
• Short chassis for flexible installation

Scosche GM1590DDB / GM1590AB Dash Kit

Install a new Double-DIN car stereo in select 1994-2012 vehicles from Chevrolet, GMC, Buick (Black)

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Install a new Double-DIN car stereo in select 1994-2012 vehicles from Chevrolet, GMC, Buick (Black)

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

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Fits your Sierra 2500 HD
58
$10.95

In stock

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

AudioControl PNW1

125W RMS 1" PNW Series Component Car Tweeters

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125W RMS 1" PNW Series Component Car Tweeters

• 1" PNW Series Dome Tweeters
• 125 watts RMS Each
• 3 ohm Impedance

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3
List price $149.00
-13% $129.00 /pair

In stock

Only 3 Left!

• 1" PNW Series Dome Tweeters
• 125 watts RMS Each
• 3 ohm Impedance

Limited time!

Alpine iLX-W670-M

6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

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6.75" Double DIN Touchscreen Digital Multimedia Receiver with iDataLink Maestro Support, Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.75" Capacitive Touchscreen Display Display
• Wired Apple CarPlay and Android Auto Compatible
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Correction
• SiriusXM Satellite Radio Ready
• iDataLink Maestro compatible

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Fits your Sierra 2500 HD
2
List price $500.00
Save $150.05
-30% $349.95

In stock

Scosche MDA1B Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

MDA1B big
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Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• GM / Chevrolet Antenna Adapter
• Aftermarket Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles

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Fits your Sierra 2500 HD
366
List price $8.95
-33% $5.99

In stock

• GM / Chevrolet Antenna Adapter
• Aftermarket Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles

NVX FRING65

Universal 6.5" or 6.75" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

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Universal 6.5" or 6.75" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

• 6.5" or 6.75" Self-Adhesive Foam Speaker Baffle Ring Kit
• Waterproof automotive-grade high-density foam strips
• Prevents front and rear wave cancellation and panel vibrations
• Designed for use with 6.5" or 6.75" speakers
• Pack of 2

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Fits your Sierra 2500 HD
43
List price $19.99
-10% $17.99

In stock

Like New from: $15.29

Atrend A151-12CP

Empty Single 12" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

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Empty Single 12" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.93 cubic feet
• Compatible with select 1999-2007 vehicles from GMC, Chevrolet

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8
List price $104.95
-9% $94.99

In stock

Sony XAV-AX3200 with License Plate Camera

6.95" Double-DIN Touchscreen Digital Multimedia Receiver with License Plate Backup Camera

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6.95" Double-DIN Touchscreen Digital Multimedia Receiver with License Plate Backup Camera

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Install kits available for most vehicles

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Fits your Sierra 2500 HD
71
List price $499.98
-32% $337.99

In stock

Kenwood DPX505BT

Double DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

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Double DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

• Double DIN Bluetooth CD Digital Multimedia Receiver with USB and AUX
• LCD Text Display
• iPhone and Android Compatible
• 3 sets of 2.5 volts preamp outputs
• 13-Band Graphic Equalizer with Digital Time Alignment
• SiriusXM Satellite Radio Ready

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Fits your Sierra 2500 HD
18
List price $230.00
-22% $179.00

In stock

Limited time!

Pioneer DMH-241EX

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and Built-in Alexa

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6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth and Built-in Alexa

• Double DIN Bluetooth Digital Multimedia Receiver
• 6.2" Resistive Touchscreen Display
• Apple and Android compatible
• 3 sets of 2 volts preamp outputs
• 13-Band Graphic Equalizer
• Pandora and Spotify capable via Bluetooth

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Save $21 on install kits for this stereo

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Fits your Sierra 2500 HD
20
List price $300.00
Save $105.01
-35% $194.99

In stock

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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