Garage
Shop
Loading...
Filters
filter-icon Filters & Sort

JL Audio C1-690x (Open Box, Great)

200W RMS 6x9" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

C1-690x big
Go to item page Right Arrow Icon of Right Arrow

200W RMS 6x9" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

• 100 watts RMS Each
• 1" Silk-Suspended Aluminum Edge Driven Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
8
List price $179.99
-15% $152.99 /pair

In stock

Limited time!

Kicker CSC693 (46CSC6934) (Like New (Open Box))

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

46CSC6934 big
Go to item page Right Arrow Icon of Right Arrow

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

• 450 watts Peak Each, 150 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
List price $159.99
-26% $118.99 /pair
$107.09 with coupon | Price details

In stock

NVX - Worth the Envy - Direct to Consumer Car Audio
Limited time!

Rockford Fosgate Prime R169X3 (Like New (Open Box))

260W Peak (130W RMS) 6x9" Prime Series 3-way 4-ohm Coaxial Car Speakers with Silk Dome Midrange and Tweeters

R169X3 big
Go to item page Right Arrow Icon of Right Arrow

260W Peak (130W RMS) 6x9" Prime Series 3-way 4-ohm Coaxial Car Speakers with Silk Dome Midrange and Tweeters

• 130 watts Peak Each, 65 watts RMS Each
• 1/2" pole-mounted Silk Dome tweeters
• Silk dome pole-mounted Piezo midrange
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
34
List price $99.99
-15% $84.99 /pair
$76.49 with coupon | Price details

In stock

Hertz K 165 with Sound Damping

300W Peak (75W RMS) 6.5" Uno Series 2-Way 4 ohm Component Speaker System + NVX SDSK2 Sound Damping

K165_SDSK2 big
Go to item page Right Arrow Icon of Right Arrow

300W Peak (75W RMS) 6.5" Uno Series 2-Way 4 ohm Component Speaker System + NVX SDSK2 Sound Damping

• 150 Watts Max Each, 35 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93.5 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
52
List price $168.74
-32% $114.98

In stock

• 150 Watts Max Each, 35 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93.5 dB

Kenwood KFC-415C with Sound Damping

320W Peak (80W RMS) 4x10" Performance Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

KFC415C_SDBSK2 big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (80W RMS) 4x10" Performance Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 160 watts Peak Each, 40 watts RMS Each
• 2-3/8" Polymide Balanced Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
73
List price $198.74
-45% $109.49

In stock

• 160 watts Peak Each, 40 watts RMS Each
• 2-3/8" Polymide Balanced Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

NVX NSP69KIT (Open Box, Great)

920W Peak (320W RMS) 6x9" N-Series 2-Way Component Speakers with 20mm Silk Down Tweeters

NSP69KIT big
Go to item page Right Arrow Icon of Right Arrow

920W Peak (320W RMS) 6x9" N-Series 2-Way Component Speakers with 20mm Silk Down Tweeters

• 460 watts Peak Each, 160 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.95"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
List price $119.99
-29% $84.99 /set

In stock

Only 1 Left!

Hertz CPX 165 + FREE $100 GIft Card

6.5" Cento Series 2-Way Coaxial Car Speakers

CPX 165, 100EGIFT big
Go to item page Right Arrow Icon of Right Arrow

6.5" Cento Series 2-Way Coaxial Car Speakers

• 140 Watts Max Each, 45 Watts RMS Each
• Pressed-paper cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 2-5/8"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $21 on install kits for this speaker

found car based on your search
Fits the following location in your Thunderbird
8
List price $505.00
-31% $349.99 /pair

In stock

• 140 Watts Max Each, 45 Watts RMS Each
• Pressed-paper cone material
• Tetolon Tweeter dome
• 4 Ohm Impedance
• Sensitivity: 92 dB
• Mounting Depth: 2-5/8"

Cerwin Vega Stroker Pro CVMPCL6.5 (Pair)

200W Max (100W RMS) 6.5" Stroker Pro Series Coaxial Car Speakers

(2)CVMPCL6.5 big
Go to item page Right Arrow Icon of Right Arrow

200W Max (100W RMS) 6.5" Stroker Pro Series Coaxial Car Speakers

• 200 watts Peak Each, 100 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 93.2 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

found car based on your search
Fits your Thunderbird
9
List price $239.98
-17% $199.98

In stock

Only 2 Left!

• 200 watts Peak Each, 100 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 93.2 dB

Hertz DSK165.3 (2-Pairs, 4-Total)

320W Peak (160W RMS) 6.5" Dieci Series 2-Way Component Speaker system (2-Pairs)

DSK1653_2 big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (160W RMS) 6.5" Dieci Series 2-Way Component Speaker system (2-Pairs)

• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
2
List price $460.00
-13% $399.98

In stock

Only 3 Left!

• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

Limited time!

Massive Audio M6 (Sold Individually) (Open Box, Great)

300W Peak (140W RMS) 6.5" M Series 8-ohm Midrange Car Speaker

M6-3 big
Go to item page Right Arrow Icon of Right Arrow

300W Peak (140W RMS) 6.5" M Series 8-ohm Midrange Car Speaker

• 300 watts Peak Each, 140 watts RMS Each
• Laminate-Treated Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $13 on install kits for this speaker

found car based on your search
Fits the following location in your Thunderbird
List price $49.99
-44% $27.99
$25.19 with coupon | Price details

In stock

Only 1 Left!

Limited time!

Kicker CSS69 (46CSS694) (Like New (Open Box))

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

46CSS694 big
Go to item page Right Arrow Icon of Right Arrow

900W Peak (300W RMS) 6x9" CS Series 2 Way Component 4-ohm Speaker System

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
35
List price $219.99
-23% $169.99 /set
$152.99 with coupon | Price details

In stock

Only 1 Left!

• 450 watts Peak Each, 150 watts RMS Each
• 3/4" Titanium Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

Memphis Audio SRXP69WTv2 (Sold Individually) (Open Box, Great)

350W Peak (175W RMS) 6x9" Street Reference Pro Series 2 Way Pro Audio Coaxial 4-ohm Speakers with RGB LED Lighting

SRXP69WTv2 big
Go to item page Right Arrow Icon of Right Arrow

350W Peak (175W RMS) 6x9" Street Reference Pro Series 2 Way Pro Audio Coaxial 4-ohm Speakers with RGB LED Lighting

• 350 watts Peak Each, 175 watts RMS Each
• 3" Horn tweeters
• Lightweight Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Install kits available for most vehicles

found car based on your search
Fits the following location in your Thunderbird
  • Rear Deck Corner
List price $129.95
Save $69.96
-54% $59.99
$53.99 with coupon | Price details

In stock

Only 1 Left!

Rockford Fosgate T1650-S (Pair, 2-Total)

640W Peak (320W RMS) 6.5" Power Series 2-Way Component Speaker System (Pair)

T1650S_2 big
Go to item page Right Arrow Icon of Right Arrow

640W Peak (320W RMS) 6.5" Power Series 2-Way Component Speaker System (Pair)

• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
1
$759.98

In stock

Only 3 Left!

• 160 watts Peak Each, 80 watts RMS Each
• 1" Treated Fabric Dome Tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 PRO-NS6 (Pair)

600W Peak (300W RMS) 6.5" PRO-NS Series 8-Ohm Midrange Car Speakers (Pair)

PRONS6_2 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (300W RMS) 6.5" PRO-NS Series 8-Ohm Midrange Car Speakers (Pair)

• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
$143.90

In stock.

• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

Cerwin-Vega PH694 (2-Pairs, 4-Total)

1280W Peak (640W RMS) 6x9" PRO Series Full-Range Coaxial Car Speakers (2-Pairs)

PH694_2 big
Go to item page Right Arrow Icon of Right Arrow

1280W Peak (640W RMS) 6x9" PRO Series Full-Range Coaxial Car Speakers (2-Pairs)

• 320 watts Peak Each, 160 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 101 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
2
List price $479.98
-17% $399.98

In stock

• 320 watts Peak Each, 160 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 101 dB

Pioneer TS-Z65CH with Sound Damping

660W Peak (220W RMS) 6.5" Z-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

TSZ65CH_SDBSK2 big
Go to item page Right Arrow Icon of Right Arrow

660W Peak (220W RMS) 6.5" Z-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 330 watts Peak Each, 110 watts RMS Each
• 1.14" Aluminum Alloy Balanced Dome tweeters
• IMPP - Aramid Fiber and Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
48
List price $418.74
-36% $269.99

In stock

• 330 watts Peak Each, 110 watts RMS Each
• 1.14" Aluminum Alloy Balanced Dome tweeters
• IMPP - Aramid Fiber and Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

400W 6x9" 3-Way CS Series Coaxial Car Speakers Package

Crunch 800 Watts 6 x 9 Inches 3-Way 4-Ohm Coaxial CS Speakers (2 Pack)

CS693,CS693 big
Go to item page Right Arrow Icon of Right Arrow

Crunch 800 Watts 6 x 9 Inches 3-Way 4-Ohm Coaxial CS Speakers (2 Pack)

• Peak Power: 400W
• RMS Power: 200W
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
26
List price $99.98
-38% $61.98

In stock

• Peak Power: 400W
• RMS Power: 200W
• Neo Mylar Soft Dome Tweeter
• Impedance: 4 ohm
• Cellulose Cone and Rubber Surround

(4) Hifonics ZS65CXS 6.5" 1200 Watt Shallow Mount Car Stereo Speakers

600W Peak (100W RMS) Pair of 6.5" Zeus Shallow Mount 2-way coaxial car speakers Package

ZS65CXS,ZS65CXS big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (100W RMS) Pair of 6.5" Zeus Shallow Mount 2-way coaxial car speakers Package

• 300 Watts Max Each, 50 Watts RMS Each
&bull 1" Neo-Mylar Dome Tweeter
• Alpha-Cellulose Midwoofer Cone
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1.65"

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
19
List price $69.98
-11% $61.98

In stock

Only 2 Left!

• 300 Watts Max Each, 50 Watts RMS Each
&bull 1" Neo-Mylar Dome Tweeter
• Alpha-Cellulose Midwoofer Cone
• 4 Ohm Impedance
• Sensitivity: 88 dB
• Mounting Depth: 1.65"

Infinity Kappa 63XF (2-Pairs, 4-Total)

1020W Peak (340W RMS) 6.5" Kappa Series 2-Way Coaxial Speakers with Silk Dome Tweeters (2-Pairs)

KAPPA63XF_2 big
Go to item page Right Arrow Icon of Right Arrow

1020W Peak (340W RMS) 6.5" Kappa Series 2-Way Coaxial Speakers with Silk Dome Tweeters (2-Pairs)

• 255 watts Peak Each, 85 watts RMS Each
• Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
10
List price $599.90
-33% $399.90

In stock

• 255 watts Peak Each, 85 watts RMS Each
• Silk Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Infinity Primus 603CF (PR603CF) (2-Pairs, 4-Total)

720W Peak (240W RMS) 6.5" Primus Series 2-Way Component Speakers (2-Pairs)

PR603CF_2 big
Go to item page Right Arrow Icon of Right Arrow

720W Peak (240W RMS) 6.5" Primus Series 2-Way Component Speakers (2-Pairs)

• 180 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Thunderbird
1
List price $319.90
-19% $259.90

In stock

Only 1 Left!

• 180 watts Peak Each, 60 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

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 Speakers in 1981 Thunderbird

    Q: Can I upgrade or change the Speakers in 1981 Ford Thunderbird?

    A: Yes this page includes all the best Speakers that work in your Thunderbird.

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

    2004 BMW 330Ci

    1981 Ford Thunderbird

    1993 Ford E Series

    1978 Buick LeSabre

    1981 Buick Regal

    1996 Ford Windstar

    2001 Lincoln Navigator

    2018 Honda Ridgeline

    1997 Audi Cabriolet

    1971 Mercury Comet

    Vehicle
    Store
    Delete

    1986 Harley Davidson FLHT Electra Glide Standard

    1999 Harley Davidson FXST Softail Standard

    Vehicle
    Store
    Delete

    2015 Can-Am Commander E

    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.