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

Diamond Audio DMDX8

390W Peak (130W RMS) 8" DMDX Series 2-Way Cocentric Coaxial Car Speakers

No picture
Go to item page Right Arrow Icon of Right Arrow

390W Peak (130W RMS) 8" DMDX Series 2-Way Cocentric Coaxial Car Speakers

• 195 watts Peak Each, 65 watts RMS Each
• Silk Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

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

VIP Product Get $19.00 in rewards to spend later

install icon

Save $8 on install kits for this speaker

found car based on your search
Fits your A4
$189.99 /pair

In stock.

• 195 watts Peak Each, 65 watts RMS Each
• Silk Dome Tweeters
• Impedance: 4 ohm
• Sensitivity: 87 dB

Limited time!

Kicker CSC5 (46CSC54)

450W Peak (150W RMS) 5.25” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC54 big
Go to item page Right Arrow Icon of Right Arrow

450W Peak (150W RMS) 5.25” CS Series 2 Way Coaxial 4-ohm Speakers

• 225 watts Peak Each, 75 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters with neodymium magnets
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $9 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
  • Front Door
  • Rear Seat Side Panel
5
List price $119.99
Save $40.03
-33% $79.96 /pair

In stock

Used from: $69.99 Like New from: $84.99
Limited time!

JL Audio C2-650x

120W RMS 6.5" C2 Series 2-Way Coaxial 4-ohm Car Speakers

C2-650X big
Go to item page Right Arrow Icon of Right Arrow

120W RMS 6.5" C2 Series 2-Way Coaxial 4-ohm Car Speakers

• 60 watts RMS Each
• 3/4" Silk Dome tweeters
• Mica Injected Polypropylene - MIPP cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $28.00 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
26
$279.99 /pair

In stock

Used from: $237.99
Limited time!

Alpine R2-S65

600W Peak (200W RMS) 6.5" R-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

R2-S65 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.5" R-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• Hi-Res Audio-certified
• 1" Magnesium Hard Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
12
List price $400.00
Save $136.05
-34% $263.95 /pair

In stock

Limited time!

Alpine S2-S65C

480W Peak (160W RMS) 6.5" S-Series Hi-Res 2-Way Component Car Speakers

S2-S65C big
Go to item page Right Arrow Icon of Right Arrow

480W Peak (160W RMS) 6.5" S-Series Hi-Res 2-Way Component Car Speakers

• 240 watts Peak Each, 80 watts RMS Each
• Hi-Res Audio Certified
• 1" Cloth Dome tweeters
• Polypropylene, Glass Fiber and Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $18.00 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
1
List price $220.00
-18% $179.95 /set

In stock

NVX ESP65

360W Peak (120W RMS) 6.5" E-Series 2 Way Coaxial Car Speakers

ESP65 big
Go to item page Right Arrow Icon of Right Arrow

360W Peak (120W RMS) 6.5" E-Series 2 Way Coaxial Car Speakers

• 180 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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

Save up to $24 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
13
List price $54.99
-18% $44.99 /pair

In stock

NVX NSP65KIT

600W Peak (200W RMS) 6.5" N-Series 2 Way Component Car Speakers

NSP65KIT big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.5" N-Series 2 Way Component Car Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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

Save up to $11 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
6
List price $107.99
-17% $89.99 /set

In stock

Limited time!

Kicker KSS65 (51KSS6504)

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

51KSS6504 big
Go to item page Right Arrow Icon of Right Arrow

500W Peak (250W RMS) 6.5" KS Series 2-Way 4-ohm Component Speaker System

• 250 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
2
List price $279.99
-11% $249.99 /set

In stock

Only 1 Left!

Like New from: $212.49
Limited time!

Rockford Fosgate Power T1 T1675

300W Peak (150W RMS) 6.75” Power Series 2 Way Coaxial 4-ohm Speakers

T1675 big
Go to item page Right Arrow Icon of Right Arrow

300W Peak (150W RMS) 6.75” Power Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Carbon Fiber Reinforced IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $22.00 in rewards to spend later

install icon

Save $25 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
17
$219.99 /pair

In stock

Used from: $186.99
Limited time!

Alpine R2-S652

600W Peak (200W RMS) 6.5" R-Series PRO 2-way 4-ohm Hi-Res Component Speaker System

R2-S652 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.5" R-Series PRO 2-way 4-ohm Hi-Res Component Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Baffles with Select Speakers Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $40.00 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
List price $600.00
Save $200.05
-33% $399.95 /set

In stock

Alpine S2-S80C

520W Peak (170W RMS) 8" S-Series Hi-Res 2-Way Component Car Speakers

S2-S80C big
Go to item page Right Arrow Icon of Right Arrow

520W Peak (170W RMS) 8" S-Series Hi-Res 2-Way Component Car Speakers

• 260 watts Peak Each, 85 watts RMS Each
• Hi-Res Audio Certified
• 1" Cloth Dome tweeters
• Polypropylene, Glass Fiber and Mica cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

VIP Product Get $24.00 in rewards to spend later

install icon

Save $11 on install kits for this speaker

found car based on your search
Fits your A4
List price $290.00
-17% $239.95 /set

In stock

Cerwin Vega CVMPCL8.0 (Sold Individually)

400W Peak (200W RMS) 8" Stroker Pro Series Full Range 4-ohm Speakers

CVMPCL8.0 big
Go to item page Right Arrow Icon of Right Arrow

400W Peak (200W RMS) 8" Stroker Pro Series Full Range 4-ohm Speakers

• 400 watts Peak Each, 200 watts RMS Each
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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

VIP Product Get $14.00 in rewards to spend later

install icon

Save $11 on install kits for this speaker

found car based on your search
Fits your A4
List price $167.99
-17% $139.99

In stock

Only 2 Left!

Limited time!

Cerwin-Vega V675

720W Peak (240W RMS) 6.75" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

V675 big
Go to item page Right Arrow Icon of Right Arrow

720W Peak (240W RMS) 6.75" Vega Series 2025 Edition 2-Way Coaxial 4-ohm Speakers

• 360 watts Peak Each, 120 watts RMS Each
• 3/4" Silk Balanced Dome Tweeters
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save $25 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
$139.99 /pair

In stock

Only 1 Left!

Limited time!

Kenwood eXcelon XR-1801P

660W Peak (240W RMS) 7" eXcelon Reference Series 2-Way 3-ohm Component Speaker System (Hi-Res Audio Certified)

XR-1801P big
Go to item page Right Arrow Icon of Right Arrow

660W Peak (240W RMS) 7" eXcelon Reference Series 2-Way 3-ohm Component Speaker System (Hi-Res Audio Certified)

• 330 watts Peak Each, 120 watts RMS Each
• 1-3/16" Titanium Hard Dome Tweeters
• Glass Fiber cone material
• High-resolution (Hi-Res) audio certified
• Impedance: 3 ohm
• Sensitivity: 87 dB

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

VIP Product Get $35.90 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
List price $530.00
Save $171.00
-32% $359.00 /set

In stock

Only 1 Left!

Hertz DSK 160.3

320W Peak (160W RMS) 6” Dieci Series 2-way 4-ohm Component Speaker System with 6" Adaptor Ring for GM and Honda models

DSK 160.3 big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (160W RMS) 6” Dieci Series 2-way 4-ohm Component Speaker System with 6" Adaptor Ring for GM and Honda models

• 160 watts Peak Each, 80 watts RMS Each
• 0.9" PEI (Polyetherimide) Dome-Cone tweeters with neodymium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 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

install icon

Save $25 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
List price $230.00
-13% $199.99 /set

In stock

Kicker CSC67 (46CSC674) (Open Box, Great)

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

46CSC674 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.75” CS Series 2 Way Coaxial 4-ohm Speakers

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

Install kits available for this speaker

found car based on your search
Fits multiple locations in your A4
List price $119.99
-42% $69.99 /pair

In stock

Only 2 Left!

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Limited time!

Rockford Fosgate Punch P3 P3V2-25

300W Peak (150W RMS) 2.5" Punch P3 Series 4-ohm Midrange Car Speakers

P3V2-25 big
Go to item page Right Arrow Icon of Right Arrow

300W Peak (150W RMS) 2.5" Punch P3 Series 4-ohm Midrange Car Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 20-40% Mica reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 82 dB

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

VIP Product Get $22.50 in rewards to spend later

install icon

Save $25 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
List price $299.99
Save $75.00
-25% $224.99 /pair

In stock

Only 3 Left!

Deaf Bonce Apocalypse AP-M67AN

1200W Peak (600W RMS) 6.5" Apocalypse Series Midrange 4-ohm Car Speakers

AP-M67AN big
Go to item page Right Arrow Icon of Right Arrow

1200W Peak (600W RMS) 6.5" Apocalypse Series Midrange 4-ohm Car Speakers

• 600 watts Peak Each, 300 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 102 dB

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

VIP Product Get $44.99 in rewards to spend later

install icon

Save up to $25 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
2
$449.90 /pair

In stock

Limited time!

Hertz DSK 170.3

320W Peak (160W RMS) 6.75” Dieci Series 2-way 4-way Component Speakers System

DSK 170.3 big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (160W RMS) 6.75” Dieci Series 2-way 4-way Component Speakers System

• 160 watts Peak Each, 80 watts RMS Each
• 1" PEI (Polyetherimide) Dome-Cone tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Free Baffles with Select Speakers Shop deal
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

install icon

Save $25 on install kits for this speaker

found car based on your search
Fits multiple locations in your A4
1
List price $230.00
-13% $199.99 /set

In stock

Limited time!

Alpine EL-E65-G

320W Peak (80W RMS) 6.5" EL Series 2-Way Coaxial 4-ohm Car Speakers

EL-E65-G big
Go to item page Right Arrow Icon of Right Arrow

320W Peak (80W RMS) 6.5" EL Series 2-Way Coaxial 4-ohm Car Speakers

• 160 watts Peak Each, 40 watts RMS Each
• 3/4" Teteron Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Save up to $22 on install kits for this speaker

additional information required
Fits select locations in your A4.
Add vehicle details to confirm exact location.
1
List price $80.00
-13% $69.95 /pair

In stock

Used from: $48.97

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 2008 A4

    Q: Can I upgrade or change the Speakers in 2008 Audi A4?

    A: Yes this page includes all the best Speakers that work in your A4.

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

    2008 Audi A4

    2020 BMW X6

    2022 Audi A4

    2014 Jeep Cherokee

    2006 Saab 9-7X

    2010 Kia Forte

    2014 Mercedes-Benz E-Class

    1995 Dodge Ram 1500

    2014 BMW 650i

    1966 Buick Riviera

    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.