1978 Chevrolet P20 Car Speaker Installation & Accessories: Speaker Brackets & Adapters, Speaker Wire & Harnesses

Speakers that fit your 1978 Chevrolet P20

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NVX SDBSK2 Premium Stealth Black

Premium Sound Damping (Sound Deadening) Speaker Kit, two 10" x 10" Sheets (91mil THICK)

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Premium Sound Damping (Sound Deadening) Speaker Kit, two 10" x 10" Sheets (91mil THICK)

• Solid Black for Any Stealth Car Audio Installation
• 2.3mm (91mil) thick for better performance
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL (LOUDER)
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

16
NVX SDBSK2 Premium Stealth Black

Premium Sound Damping (Sound Deadening) Speaker Kit, two 10" x 10" Sheets (91mil THICK)

In stock

$37.48 (60.01% off)
$14.99
More info Item page
1 Special offer
  • FREE Sound Damping Kit to stop the rattles/vibrations!

This product type does not require fitment.

Item Added to Cart

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Premium Sound Damping (Sound Deadening) Speaker Kit, two 10" x 10" Sheets (91mil THICK)

$14.99

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NVX SD-KIT

Complete Sound Dampening Installation Kit

$32.97

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$14.99

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Metra 72-4568

Speaker Harness for Select 1984-2019 GMC, Oldsmobile, Chevrolet, Pontiac, Saturn, Hummer, Buick, Cadillac, Isuzu Vehicles

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Speaker Harness for Select 1984-2019 GMC, Oldsmobile, Chevrolet, Pontiac, Saturn, Hummer, Buick, Cadillac, Isuzu Vehicles

• Compatible with 1984-2019 GMC, Oldsmobile, Chevrolet, Pontiac, Saturn, Hummer, Buick, Cadillac, Isuzu Vehicles
• Connects speakers to factory harness

56
Metra 72-4568

Speaker Harness for Select 1984-2019 GMC, Oldsmobile, Chevrolet, Pontiac, Saturn, Hummer, Buick, Cadillac, Isuzu Vehicles

In stock

$19.99 (65.03% off)
$6.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

NVX XBAF65 Speaker Baffle Ring Kit

Silicone Rubber Construction, Designed for 6.5" Speakers (Pair)

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Silicone Rubber Construction, Designed for 6.5" Speakers (Pair)

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF65's will last a lifetime

19
NVX XBAF65 Speaker Baffle Ring Kit

Silicone Rubber Construction, Designed for 6.5" Speakers (Pair)

In stock

$34.99 (28.58% off)
$24.99
More info Item page
3 Special offers
  • Get 10% off NVX Silicone Rubber Speaker Baffle Rings
  • Get 25% off NVX Silicone Rubber Speaker Baffle Rings
  • FREE set of NVX Silicone Rubber Speaker Baffle Rings!

This product type does not require fitment.

NVX SDRLR1 Sound Dampening Rubber Roller

Universal, Professional Heavy Duty Roller for Sound Damping (Sound Deadening)

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Universal, Professional Heavy Duty Roller for Sound Damping (Sound Deadening)

• Universal Heavy Duty Roller Tool for Installing Sound Damping from NVX, Dynamat, and others
• Thick Plated Steel Frame
• 2" Solid Rubber Roller

86
NVX SDRLR1 Sound Dampening Rubber Roller

Universal, Professional Heavy Duty Roller for Sound Damping (Sound Deadening)

In stock

$9.99 (20.02% off)
$7.99
More info Item page
3 Special offers
  • 50% off Roller with Purchase of Select Sound Deadener!
  • Free Roller with Purchase of Select Sound Deadener!
  • 15% off Roller with Purchase of Select Sound Deadener!

This product type does not require fitment.

Item Added to Cart

SDRLR1 small

Universal, Professional Heavy Duty Roller for Sound Damping (Sound Deadening)

$7.99

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NVX SD-KIT

Complete Sound Dampening Installation Kit

$32.97

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NVX SDSK2 - 90mil 2.3mm THICK

Speaker Kit - 1.38 Square Feet of Sound Damping (Sound Deadening) Material (Two 10" x 10" Pieces)

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Speaker Kit - 1.38 Square Feet of Sound Damping (Sound Deadening) Material (Two 10" x 10" Pieces)

• Eliminates Road Noise
• 2.3mm (90.55mil) thick for better performance
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

89
NVX SDSK2 - 90mil 2.3mm THICK

Speaker Kit - 1.38 Square Feet of Sound Damping (Sound Deadening) Material (Two 10" x 10" Pieces)

In stock

$19.99 (25.01% off)
$14.99
More info Item page
6 Special offers
  • Get 50% off Sound Damping to stop the rattles/vibrations!
  • Get 25% off Sound Damping to stop the rattles/vibrations!
  • Save 10% on Damping Kit to stop the rattles/vibrations!
  • FREE Sound Damping Kit to stop the rattles/vibrations!
  • Get some Damping Kit to stop the rattles/vibrations!
  • Save 50% on Damping Kit to stop the rattles/vibrations!

This product type does not require fitment.

Item Added to Cart

SDSK2 small

Speaker Kit - 1.38 Square Feet of Sound Damping (Sound Deadening) Material (Two 10" x 10" Pieces)

$14.99

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NVX SD-KIT

Complete Sound Dampening Installation Kit

$32.97

Add

$14.99

Add

Don't see the accessory you're looking for?
View all available accessories for the NVX SDSK2 - 90mil 2.3mm THICK.
Metra 82-6901

5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters for Select 1974-2019 BMW, Toyota, Chrysler, GMC, Chevrolet, Buick, Pontiac, Honda, Infiniti, Dodge, Oldsmobile, Ford, Kia, Lincoln, Maserati, Hyundai, Cadillac, Mitsubishi, Jeep, Volkswagen, Mazda

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5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters for Select 1974-2019 BMW, Toyota, Chrysler, GMC, Chevrolet, Buick, Pontiac, Honda, Infiniti, Dodge, Oldsmobile, Ford, Kia, Lincoln, Maserati, Hyundai, Cadillac, Mitsubishi, Jeep, Volkswagen, Mazda

• 5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters
• Mount your pair of 5-1/4" or 6-1/2" speakers in a 6" x 9" mounting hole
• Compatible with 1974-2019 BMW, Toyota, Chrysler, GMC, Chevrolet, Buick, Pontiac, Honda, Infiniti, Dodge, Oldsmobile, Ford, Kia, Lincoln, Maserati, Hyundai, Cadillac, Mitsubishi, Jeep, Volkswagen, Mazda, Jaguar, Nissan, Lexus, Ram, Volvo, Mini, Plymouth, Mercury, Saturn, Eagle, Acura, Aston Martin, Saab, Audi, Land Rover, Subaru, Mercedes-Benz, Suzuki Vehicles

26
Metra 82-6901

5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters for Select 1974-2019 BMW, Toyota, Chrysler, GMC, Chevrolet, Buick, Pontiac, Honda, Infiniti, Dodge, Oldsmobile, Ford, Kia, Lincoln, Maserati, Hyundai, Cadillac, Mitsubishi, Jeep, Volkswagen, Mazda

In stock

$19.99 (45.02% off)
$10.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Metra 72-5600

Speaker Harness for Select 1998-2020 Ford Vehicles

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Speaker Harness for Select 1998-2020 Ford Vehicles

• Compatible with 1998-2020 Ford Vehicles
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting needed
• Plugs directly into the harness

64
Metra 72-5600

Speaker Harness for Select 1998-2020 Ford Vehicles

In stock

$19.99 (65.03% off)
$6.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Metra 72-8104

Speaker Connector Harness for Select Toyota Vehicles

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Speaker Connector Harness for Select Toyota Vehicles

Speaker Connector for Select Toyota Vehicles • Connects aftermarket speakers to the factory speaker harness • Quick and easy installation • No cutting needed • Plugs directly into harness

41
Metra 72-8104

Speaker Connector Harness for Select Toyota Vehicles

In stock

 
$10.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Metra 72-6514

Speaker Harness for Select 2002-2021 Chrysler, Jeep, Dodge, Ram, Volkswagen Vehicles

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Speaker Harness for Select 2002-2021 Chrysler, Jeep, Dodge, Ram, Volkswagen Vehicles

Compatible with 2002-2021 Chrysler, Jeep, Dodge, Ram, Volkswagen Vehicles • Quick and easy installation • No cutting into original wires needed • Plugs directly into harness

36
Metra 72-6514

Speaker Harness for Select 2002-2021 Chrysler, Jeep, Dodge, Ram, Volkswagen Vehicles

In stock

$14.99 (53.37% off)
$6.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

American International NSB710

6.5" or 6.75" Speaker Adapters for 1995-2017 Nissan, Infiniti, Suzuki, Mazda

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6.5" or 6.75" Speaker Adapters for 1995-2017 Nissan, Infiniti, Suzuki, Mazda

• American International Speaker Adapters
• Compatible with 1995-2017 Nissan, Infiniti, Suzuki, Mazda Vehicles
• Designed for 6.5" or 6.75" speakers
• Outer Diameter: 7.203"
• Inner Diameter: 5.768"
• Height: 0.83"

1
American International NSB710

6.5" or 6.75" Speaker Adapters for 1995-2017 Nissan, Infiniti, Suzuki, Mazda

In stock

Only 2 Left!

 
$12.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

NVX XBAF69 Speaker Baffle Ring Kit

Silicone Rubber Construction, Designed for 6" x 9" Speakers (Pair)

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Silicone Rubber Construction, Designed for 6" x 9" Speakers (Pair)

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF69's will last a lifetime

13
NVX XBAF69 Speaker Baffle Ring Kit

Silicone Rubber Construction, Designed for 6" x 9" Speakers (Pair)

In stock

$39.99 (37.51% off)
$24.99
More info Item page
3 Special offers
  • Get 10% off NVX Silicone Rubber Speaker Baffle Rings
  • Get 25% off NVX Silicone Rubber Speaker Baffle Rings
  • FREE set of NVX Silicone Rubber Speaker Baffle Rings!

This product type does not require fitment.

Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for Select 1973-2018 Ford, Mercury, Mazda, BMW, Lincoln, Nissan, Toyota, Dodge, Jaguar, Mini, Hyundai, Chrysler, Jeep, Kia Vehicles

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Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for Select 1973-2018 Ford, Mercury, Mazda, BMW, Lincoln, Nissan, Toyota, Dodge, Jaguar, Mini, Hyundai, Chrysler, Jeep, Kia Vehicles

• The SA68 speaker adapters fit most aftermarket 5 1/4" and 6 1/2" speakers into a 6" x 8" factory opening
• Compatible with 1973-2018 Ford, Mercury, Mazda, BMW, Lincoln, Nissan, Toyota, Dodge, Jaguar, Mini, Hyundai, Chrysler, Jeep, Kia Vehicles

32
Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for Select 1973-2018 Ford, Mercury, Mazda, BMW, Lincoln, Nissan, Toyota, Dodge, Jaguar, Mini, Hyundai, Chrysler, Jeep, Kia Vehicles

In stock

$11.95 (8.03% off)
$10.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Metra 72-7800

Speaker Harness for Select 1982-2020 Acura, Honda Vehicles

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Speaker Harness for Select 1982-2020 Acura, Honda Vehicles

• Compatible with 1982-2020 Acura, Honda Vehicles • Quick and easy installation • No cutting into original wiring needed • Plugs into original equipment radio

57
Metra 72-7800

Speaker Harness for Select 1982-2020 Acura, Honda Vehicles

In stock

$14.99 (46.70% off)
$7.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Belva BBSW127

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

• 7 Meters
• 12 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

18
Belva BBSW127

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

In stock

$39.99 (62.52% off)
$14.99
More info Item page
2 Special offers
  • Free Speaker Wire with Enclosure Purchase
  • 50% Off Speaker Wire with Enclosure Purchase

This product type does not require fitment.

Item Added to Cart

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12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

$14.99

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12-10 AWG Butt Connectors (100 Pack)

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

$53.99

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Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

$18.95

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Install Bay IBBAF60

6.5" Foam Acoustic Speaker Baffles

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6.5" Foam Acoustic Speaker Baffles

• Foam Acoustic Speaker Baffles
• Fits 6.5" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

4
Install Bay IBBAF60

6.5" Foam Acoustic Speaker Baffles

In stock

$8.98 (33.30% off)
$5.99
More info Item page
1 Special offer
  • Get a FREE Pair of 6.5" Speaker Baffles with Your Purchase!

This product type does not require fitment.

Belva BBSW167

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

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16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

• 7 Meters
• 16 Gauge Speaker Wire
• High Strand Count for Maximum Flexibility
• 23 Foot Length

6
Belva BBSW167

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

In stock

$24.99 (48.02% off)
$12.99

This product type does not require fitment.

Item Added to Cart

BBSW167 small

16 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)

$12.99

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16-14 AWG Quick Disconnect Connectors (100 Pack)

FEMALE insulated quick disconnect connectors provide a fast and easy connection when installing your new speaker wire.

$6.99

Add
Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

$18.95

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NVX XWS1625

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

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25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

• 25 ft. of 16 Gauge EnvyFlex Speaker Wire
• Twisted-Pair Technology
• Full Spec Wire Is True To Gauge
• Flexible and Easy to Install
• Silver-Tinned 100% Virgin Copper

37
NVX XWS1625

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

In stock

$29.99 (33.34% off)
$19.99
More info Item page
3 Special offers
  • 10% Off True Spec EnvyFlex Speaker Wire with Purchase!
  • 50% Off True Spec EnvyFlex Speaker Wire with Purchase!
  • FREE NVX True Spec EnvyFlex Speaker Wire with Purchase!

This product type does not require fitment.

Item Added to Cart

XWS1625 small

25 ft. of True Spec 16 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$19.99

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16-14 AWG Quick Disconnect Connectors (100 Pack)

FEMALE insulated quick disconnect connectors provide a fast and easy connection when installing your new speaker wire.

$6.99

Add
Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

$18.95

Add

Don't see the accessory you're looking for?
View all available accessories for the NVX XWS1625.
NVX SDBP40 40 ft Bulk Pack Sound Deadening (Entire Car) - 90mil 2.3mm THICK

40 Square Feet of Sound Damping Material (Sound Deadening) - Ten 18" x 32" Pieces

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40 Square Feet of Sound Damping Material (Sound Deadening) - Ten 18" x 32" Pieces

• Eliminates Road Noise
• 2.3mm (90.55mil) thick for better performance
• Quiets Vibrations
• Stops Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Ten 18" x 32" Pieces

104
NVX SDBP40 40 ft Bulk Pack Sound Deadening (Entire Car) - 90mil 2.3mm THICK

40 Square Feet of Sound Damping Material (Sound Deadening) - Ten 18" x 32" Pieces

In stock

$279.99 (60.72% off)
$109.99
More info Item page
6 Special offers
  • Free NVX Black Reusable Cloth Face Mask with purchase!
  • Get 10% Off Sound Deadener with Subwoofer Purchase!
  • Get 25% Off Sound Deadener with Subwoofer Purchase!
  • Get 50% Off Sound Deadener with Subwoofer Purchase!
  • FREE Sound Deadener with Subwoofer Purchase!
  • Free Roller with Purchase of Select Sound Deadener!

This product type does not require fitment.

Item Added to Cart

SDBP40 small

40 Square Feet of Sound Damping Material (Sound Deadening) - Ten 18" x 32" Pieces

$109.99

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NVX SD-KIT

Complete Sound Dampening Installation Kit

$32.97

Add

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American International GMSB356

6.5" or 6.75" Speaker Adapter for Select 2005-2017 Cadillac, Chevrolet, GMC, Pontiac, Hummer, Buick, Saturn Vehicles

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6.5" or 6.75" Speaker Adapter for Select 2005-2017 Cadillac, Chevrolet, GMC, Pontiac, Hummer, Buick, Saturn Vehicles

• 6-1/2" to 6-3/4" Speaker Adapters
• Compatible with 2005-2017 Cadillac, Chevrolet, GMC, Pontiac, Hummer, Buick, Saturn Vehicles
• Factory look
• Simple Installation

American International GMSB356

6.5" or 6.75" Speaker Adapter for Select 2005-2017 Cadillac, Chevrolet, GMC, Pontiac, Hummer, Buick, Saturn Vehicles

In stock

 
$7.99

can't determine fitment We can't determine fit in your 1978 Chevrolet P20

Stinger Roadkill RKFR6

FAST Foam Speaker Enhancer System Kit for 6" and 6.5" Drivers 3pc

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FAST Foam Speaker Enhancer System Kit for 6" and 6.5" Drivers 3pc

• F.A.S.T. Ring Kit for 6" and 6.5" Speakers
• Includes 3 piece foam speaker rings
• Acoustically seals speakers for better sound performance
• Absorbs rear wave, prevents front and rear wave cancellation and reduces panels vibrations

19
Stinger Roadkill RKFR6

FAST Foam Speaker Enhancer System Kit for 6" and 6.5" Drivers 3pc

In stock

$35.00 (40.03% off)
$20.99

This product type does not require fitment.

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