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XpressKit PLJX

GM Self Learning Passlock Override

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GM Self Learning Passlock Override

• GM Self Learning Passlock Override
• GM Passlock 1, 2, Vats, and Ion Self Learning Digital Interface Jumper Selection

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FREE 3-day shipping to VA. Get it Wed, Apr. 3

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24
Was $52.99 Details
$49.99

In stock

• GM Self Learning Passlock Override
• GM Passlock 1, 2, Vats, and Ion Self Learning Digital Interface Jumper Selection

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Item added to your cart.

Price: $49.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Scosche MDA1B Antenna Adapter

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

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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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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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found car based on your search
This product fits your 2003 Grand Prix
349
Was $8.95 Details
$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

Metra 72-4568

Speaker Wiring Harness for select 1984-2023 vehicles from GMC, Chevrolet, Pontiac

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Speaker Wiring Harness for select 1984-2023 vehicles from GMC, Chevrolet, Pontiac

• Compatible with select 1984-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Connects speakers to factory harness

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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found car based on your search
This product fits your 2003 Grand Prix
68
Was $19.99 Details
$8.99

In stock

• Compatible with select 1984-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Connects speakers to factory harness

Metra 70-2054

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

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

• Factory Amplifier Bypass Harness For Select 1997-2009 GM Vehicles
• Factory Amplifier Harness Includes 17ft. Of 16 Gauge Wire
• Harness Can Be Plugged In At Factory Amp And Ran To Location Of Aftermarket Radio/Amplifier

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FREE 2-day shipping to VA. Get it Tue, Apr. 2

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6
$56.99

In stock

Only 2 Left!

• Factory Amplifier Bypass Harness For Select 1997-2009 GM Vehicles
• Factory Amplifier Harness Includes 17ft. Of 16 Gauge Wire
• Harness Can Be Plugged In At Factory Amp And Ran To Location Of Aftermarket Radio/Amplifier

70-2054 small

Item added to your cart.

Price: $56.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

XpressKit PKALL

Xpress Kit Data Transponder ALL Interface for Remote Start | Compatible with Over 1000 Vehicles

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Xpress Kit Data Transponder ALL Interface for Remote Start | Compatible with Over 1000 Vehicles

• Data Transponder ALL Interface for Remote Start Systems
• Compatible with Over 1000 Vehicles
• Encrypted Ignition Data Override
• Automatically Adjusts to the Type of Vehicle

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FREE 3-day shipping to VA. Delivers Apr. 11 - Apr. 18

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20
Was $79.99 Details
$59.95

Available

Ships in 10-14 days

• Data Transponder ALL Interface for Remote Start Systems
• Compatible with Over 1000 Vehicles
• Encrypted Ignition Data Override
• Automatically Adjusts to the Type of Vehicle

PKALL small

Item added to your cart.

Price: $59.95

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Scosche GM02B Wiring Harness

Install a new car stereo in select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

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Install a new car stereo in select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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237
Was $8.99 Details
$7.95

In stock

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

Metra 70-1858 Wiring Harness

Install a new car stereo in select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

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Install a new car stereo in select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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40
Was $19.99 Details
$5.99

In stock

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

Metra 44-PW22 Antenna

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Chrome)

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Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Chrome)

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Chrome

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FREE 2-day shipping to VA. Get it Tue, Apr. 2

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2
Was $89.99 Details
$55.99

In stock

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Chrome

44-PW22 small

Item added to your cart.

Price: $55.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Scosche MDAB Antenna Adapter

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

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

• Connects aftermarket stereo to factory antenna
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Ensures optimal signal quality

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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found car based on your search
This product fits your 2003 Grand Prix
18
Was $8.95 Details
$6.99

In stock

• Connects aftermarket stereo to factory antenna
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Ensures optimal signal quality

Metra 40-GM10 Antenna Adapter

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

• Factory Antenna to Aftermarket Radio Adapter
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna with mini "barbless" or "barbed" plug to aftermarket radio

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

found car based on your search
This product fits your 2003 Grand Prix
22
Was $19.99 Details
$8.99

In stock

• Factory Antenna to Aftermarket Radio Adapter
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna with mini "barbless" or "barbed" plug to aftermarket radio

PAC AOEM-GM24

Interface for Addition of Amplifier in Select 2004-Up GM Vehicles w/Factory Amplified Bose Sound System

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Interface for Addition of Amplifier in Select 2004-Up GM Vehicles w/Factory Amplified Bose Sound System

• Interface Allows Replacement/Addition of Amp
• For Select GM Vehicles w/Factory Bose System
• Interface Is Transformer Isolated
• Maintains Phase
• Linear From 20-20,000 Hz

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FREE 3-day shipping to VA. Get it Wed, Apr. 3

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7
Was $75.00 Details
$49.99

In stock

• Interface Allows Replacement/Addition of Amp
• For Select GM Vehicles w/Factory Bose System
• Interface Is Transformer Isolated
• Maintains Phase
• Linear From 20-20,000 Hz

AOEM-GM24 small

Item added to your cart.

Price: $49.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Scosche GM1508B / GM1508 Dash Kit

Install a new Single-DIN car stereo in select 1958-2005 vehicles from Chevrolet, Pontiac, Buick (Black)

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Install a new Single-DIN car stereo in select 1958-2005 vehicles from Chevrolet, Pontiac, Buick (Black)

• Single-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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Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

52
$12.95

In stock

Only 2 Left!

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

GM1508B small

Item added to your cart.

Price: $12.95

Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

Add to cart

PAC RadioPro RP5-GM11

Radio Replacement Interface with OnStar Retention and Steering Wheel Control Retention for select 2000-2023 vehicles from GMC, Chevrolet, Pontiac

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Radio Replacement Interface with OnStar Retention and Steering Wheel Control Retention for select 2000-2023 vehicles from GMC, Chevrolet, Pontiac

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified and amplified models
• Micro-B USB Updatable
• Pre-programmed to retain Steering Wheel Controls
• Color coded wires for easy installation

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FREE 2-day shipping to VA. Get it Tue, Apr. 2

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7
Was $249.00 Details
$149.99

In stock

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified and amplified models
• Micro-B USB Updatable
• Pre-programmed to retain Steering Wheel Controls
• Color coded wires for easy installation

RP5-GM11 small

Item added to your cart.

Price: $149.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Scosche SHGM03B

Speaker Harness for select 1984-2023 vehicles from GMC, Chevrolet, Pontiac

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Speaker Harness for select 1984-2023 vehicles from GMC, Chevrolet, Pontiac

• Compatible with select 1984-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Plugs Directly Into Vehicles Harness

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Fast 3-day shipping to VA. Get it Wed, Apr. 3

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found car based on your search
This product fits your 2003 Grand Prix
2
Was $12.95 Details
$9.95

In stock

• Compatible with select 1984-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Plugs Directly Into Vehicles Harness

Metra 44-PW22B Antenna

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Black)

44-PW22B big
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Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Black)

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Black

shipping truck icon
FREE 2-day shipping to VA. Get it Tue, Apr. 2

empty

Was $109.99 Details
$69.99

In stock

Only 3 Left!

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Black

44-PW22B small

Item added to your cart.

Price: $69.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Raptor AD-GM1 Antenna Adapter

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

AD-GM1 big
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Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• Factory Antenna to Aftermarket Radio Adapter
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna with mini "barbless" or "barbed" plug to aftermarket radio

shipping truck icon
Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

found car based on your search
This product fits your 2003 Grand Prix
2
Was $16.99 Details
$8.99

In stock

• Factory Antenna to Aftermarket Radio Adapter
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna with mini "barbless" or "barbed" plug to aftermarket radio

Metra 99-4544 Dash Kit

Install a new Single-DIN car stereo in select 1958-2023 vehicles from GMC, Pontiac, Chevrolet (Black)

99-4544 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1958-2023 vehicles from GMC, Pontiac, Chevrolet (Black)

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

shipping truck icon
Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

15
Was $29.99 Details
$13.99

In stock

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

99-4544 small

Item added to your cart.

Price: $13.99

Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

Add to cart

Metra 40-GM12 Antenna Adapter

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

40-GM12 big
Go to item page Right Arrow Icon of Right Arrow

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

• Factory Antenna to Aftermarket Radio Connector
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna connector/plug to aftermarket radio

shipping truck icon
Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

found car based on your search
This product fits your 2003 Grand Prix
7
Was $19.99 Details
$6.99

In stock

• Factory Antenna to Aftermarket Radio Connector
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• GM factory antenna connector/plug to aftermarket radio

American International GMK440 Dash Kit

Install a new Single-DIN car stereo in select 1974-2023 vehicles from GMC, Chevrolet, Pontiac (Black)

GMK440 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1974-2023 vehicles from GMC, Chevrolet, Pontiac (Black)

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

shipping truck icon
Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

found car based on your search
This product fits your 2003 Grand Prix
3
Was $34.00 Details
$10.99

In stock

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

GMK440 small

Item added to your cart.

Price: $10.99

Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

Add to cart

Metra 99-4000 Dash Kit

Install a new Single-DIN car stereo in select 1993-2023 vehicles from GMC, Chevrolet, Pontiac with Pocket

99-4000 big
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Install a new Single-DIN car stereo in select 1993-2023 vehicles from GMC, Chevrolet, Pontiac with Pocket

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

shipping truck icon
Fast 3-day shipping to VA. Get it Wed, Apr. 3

empty

found car based on your search
This product fits your 2003 Grand Prix
11
Was $29.99 Details
$11.99

In stock

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

99-4000 small

Item added to your cart.

Price: $11.99

Essential add-ons
Belva BTK105

5 Piece Installer's Removal Tool Kit

$18.99

$11.99

Add to cart

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    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.
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    FAQ for your 2003 Grand Prix

    Q: Can I upgrade the factory stereo system in my 2003 Pontiac Grand Prix?

    A: Yes you can improve your sound in your Grand Prix by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 2003 Grand Prix if there is a dash kit and harness solution available.

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    2003 Pontiac Grand Prix

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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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