Garage
Shop

1981 Pontiac Firebird

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 1981 Pontiac Firebird

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.

Loading...
Filters

We are sorry, no available results!

filter-icon Filters & Sort
Limited time!

NVX XBAF69

Universal 6x9" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

XBAF69 big
Go to item page Right Arrow Icon of Right Arrow

Universal 6x9" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

• 6x9" 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 6x9" speakers
• Pack of 2

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
47
List price $39.99
-43% $22.99

In stock

Used from: $16.99 Like New from: $19.54

Metra 81-4300

Universal Speaker Baffles for 5-1/4" and 6-1/2" Speakers

81-4300 big
Go to item page Right Arrow Icon of Right Arrow

Universal Speaker Baffles for 5-1/4" and 6-1/2" Speakers

• Universal Speaker Baffles
• Works for 5-1/4" & 6-1/2" Speakers
• Durable ABS Plastic Construction
• Protects the Back of the Speaker
• Reduces Panel Vibration
• Blocks Road Noise
• Creates a Tight Acoustic Seal

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
25
List price $24.99
-12% $21.99

In stock

• Universal Speaker Baffles
• Works for 5-1/4" & 6-1/2" Speakers
• Durable ABS Plastic Construction
• Protects the Back of the Speaker
• Reduces Panel Vibration
• Blocks Road Noise
• Creates a Tight Acoustic Seal

The Install Bay VXT69

XTC 6" x 9" Foam Acoustic Speaker Baffles

VXT69 big
Go to item page Right Arrow Icon of Right Arrow

XTC 6" x 9" Foam Acoustic Speaker Baffles

• Foam Speaker Baffles
• For 6" x 9" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
35
List price $25.99
-12% $22.99

In stock

Only 3 Left!

• Foam Speaker Baffles
• For 6" x 9" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

Limited time!

NVX XBAF525

Universal 5.25" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

XBAF525 big
Go to item page Right Arrow Icon of Right Arrow

Universal 5.25" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

• 5.25" 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 5.25" speakers
• Pack of 2

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
9
List price $19.99
-15% $16.99

In stock

Used from: $11.39
Limited time!

NVX FRING525

Universal 5.25" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

FRING525 big
Go to item page Right Arrow Icon of Right Arrow

Universal 5.25" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

• 5.25" 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 5.25" speakers
• Pack of 2

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
2
List price $19.99
-45% $10.99

In stock

Used from: $7.69

NVX FRING69

Universal 6x9" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

FRING69 big
Go to item page Right Arrow Icon of Right Arrow

Universal 6x9" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

• 6x9" 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 6x9" speakers
• Pack of 2

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
13
List price $19.99
-20% $15.99

In stock

Used from: $9.79

NVX XBAF65 6x9" Premium Speaker Installation 2 Pair Kit

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles + + Premium Sound Damping + Five Piece Installer's Panel Removal Installation Tool Kit w/ Sound Deadening

XBAF69X2_SDBSK2X2_BTK_SDRLR big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles + + Premium Sound Damping + Five Piece Installer's Panel Removal Installation Tool Kit w/ Sound Deadening

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
186
List price $151.44
-41% $89.94

In stock

Install Bay IBSBF69

2 Piece Speaker Baffle Kit 6X9 Inch - Pkg/Pair

IBSBF69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Speaker Baffle Kit 6X9 Inch - Pkg/Pair

• 2 Piece Speaker Baffle Kit 6 × 9 Inch
• Pkg/Pair
• Designed to improve the directional flow of sound waves and focus them into the cabin
• Perfectly seals the speaker against the interior panel
• Offers waterproof protection for the speakers
• Better sealing for better sound

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $61.99
-11% $54.99

In stock

• 2 Piece Speaker Baffle Kit 6 × 9 Inch
• Pkg/Pair
• Designed to improve the directional flow of sound waves and focus them into the cabin
• Perfectly seals the speaker against the interior panel
• Offers waterproof protection for the speakers
• Better sealing for better sound

The Install Bay VXT55

XTC 5" to 5-1/4" Round Foam Acoustic Speaker Baffles

VXT55 big
Go to item page Right Arrow Icon of Right Arrow

XTC 5" to 5-1/4" Round Foam Acoustic Speaker Baffles

• Round Foam Speaker Baffles
• For 5" to 5-1/4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
16
List price $21.99
-14% $18.99

In stock

• Round Foam Speaker Baffles
• For 5" to 5-1/4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

Install Bay IBBAF69

Acoustic Speaker Baffles 6" x 9" - Pair

IBBAF69 big
Go to item page Right Arrow Icon of Right Arrow

Acoustic Speaker Baffles 6" x 9" - Pair

• 6" x 9" Acoustic Speaker Baffles
• Sold in Pairs
• Enhances sound quality of speakers
• Protects Rear of Speakers From Rain, etc.
• Trim for Enhanced Bass Response

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
3
List price $13.99
-14% $11.99

In stock

Only 3 Left!

• 6" x 9" Acoustic Speaker Baffles
• Sold in Pairs
• Enhances sound quality of speakers
• Protects Rear of Speakers From Rain, etc.
• Trim for Enhanced Bass Response

Metra 81-6900

Universal Speaker Baffles for 6" X 9" Speakers

81-6900 big
Go to item page Right Arrow Icon of Right Arrow

Universal Speaker Baffles for 6" X 9" Speakers

• Universal Speaker Baffles • Works for 6" X 9" Speakers
• Durable ABS Plastic Construction
• Protects the Back of the Speaker
• Reduces Panel Vibration
• Blocks Road Noise
• Creates a Tight Acoustic Seal

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
7
List price $24.99
-12% $21.99

In stock

• Universal Speaker Baffles • Works for 6" X 9" Speakers
• Durable ABS Plastic Construction
• Protects the Back of the Speaker
• Reduces Panel Vibration
• Blocks Road Noise
• Creates a Tight Acoustic Seal

Install Bay IBSBF525

2 Speaker Baffle Kit 5.25" Inch - Pkg/Pair

IBSBF525 big
Go to item page Right Arrow Icon of Right Arrow

2 Speaker Baffle Kit 5.25" Inch - Pkg/Pair

• New design silicone with egg wave foam
• Foldable speaker baffle
• No more trimming or cutting
• Better sealing for better sound
• Water tight seal

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
1
List price $38.99
-10% $34.99

Available

Ships in 10-14 days

• New design silicone with egg wave foam
• Foldable speaker baffle
• No more trimming or cutting
• Better sealing for better sound
• Water tight seal

Install Bay IBBAF55

5.25" Foam Acoustic Speaker Baffles

IBBAF55 big
Go to item page Right Arrow Icon of Right Arrow

5.25" Foam Acoustic Speaker Baffles

• Foam Acoustic Speaker Baffles
• Fits 5.25" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
5
List price $13.99
-14% $11.99

In stock

• Foam Acoustic Speaker Baffles
• Fits 5.25" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

NVX XBAF69 Silicone Baffle Speaker Accessory Kit

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad w/ Speaker Kit - 1.38 Square Feet of Sound Damping Material (Two 10" x 10" Pieces)

XBAF69_SDSK2_ACC_KIT big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad w/ Speaker Kit - 1.38 Square Feet of Sound Damping Material (Two 10" x 10" Pieces)

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
94
List price $58.73
-42% $34.18

In stock

• 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

NVX FRING69 (Open Box, Great)

2 Piece 6"x9" Self-Adhesive Foam Speaker Ring Baffle Kit

FRING69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece 6"x9" Self-Adhesive Foam Speaker Ring Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $19.99
-51% $9.79

In stock

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

NVX XBAF69 (Open Box, Great)

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
1
List price $39.99
-58% $16.99

In stock

• 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

NVX XBAF69 (Like New (Open Box))

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 6x9” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $39.99
-51% $19.54

In stock

• 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

NVX FRING69 (Open Box, Good)

2 Piece 6"x9" Self-Adhesive Foam Speaker Ring Baffle Kit

FRING69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece 6"x9" Self-Adhesive Foam Speaker Ring Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $19.99
-35% $12.99

In stock

Only 1 Left!

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

NVX XBAF525 (Open Box, Good)

2 Piece Universal 5.25” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF525 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 5.25” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $19.99
-43% $11.39

In stock

Only 2 Left!

• 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

NVX XBAF525 (Open Box, Great)

2 Piece Universal 5.25” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF525 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Universal 5.25” Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• 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 XBAF525's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Firebird
List price $19.99
-34% $13.29

In stock

Only 2 Left!

• 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 XBAF525's will last a lifetime

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    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.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for Universal-Fit Audio & Electronics in 1981 Firebird

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1981 Pontiac Firebird?

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

    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    1983 Mercury Capri

    2001 Saturn SW2

    2009 Ford Edge

    2003 Ford Excursion

    1981 Pontiac Firebird

    2014 BMW Z4

    1985 Dodge B Series

    2014 Buick Verano

    2021 Audi RS7

    2010 BMW 760Li

    Vehicle
    Store
    Delete

    2020 Can-Am Defender XT HD8

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

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

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

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