Garage
Shop

Shop all 2003 Mercedes-Benz C-Class Car Audio, Speakers, & Electronics

Loading...
Filters
filter-icon Filters & Sort

Race Sport Accessories 9006TLED

9006 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pin Point Projection Optical Aims

9006TLED big
Go to item page Right Arrow Icon of Right Arrow

9006 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pin Point Projection Optical Aims

• 9006 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

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

VIP Product Get $6.90 in rewards to spend later

empty

found car based on your search
This product fits your 2003 C-Class
Was $89.00 Details
$69.00

Available

Ships in 10-14 days

• 9006 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

Metra 86-9001

1998-2006 Volkswagen/Audi/Mercedes Radio Removal Tool

86-9001 big
Go to item page Right Arrow Icon of Right Arrow

1998-2006 Volkswagen/Audi/Mercedes Radio Removal Tool

• Radio removal tool for select 1998-2006 Volkswagen, Audi, and Mercedes vehicles

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

empty

additional information required
Add more info to confirm vehicle fitment
5
Was $23.99 Details
$20.99

In stock

Only 3 Left!

• Radio removal tool for select 1998-2006 Volkswagen, Audi, and Mercedes vehicles

Fortin EVO-ALL Universal Digital Remote Start & Bypass Module

Universal All-In-One Data Bypass and Interface Module

EVO-ALL big
Go to item page Right Arrow Icon of Right Arrow

Universal All-In-One Data Bypass and Interface Module

• All-In-One Data Immobilizer Bypass and Door Lock Interface
• Multibus Architecture With 10 Separate Communication Ports
• Hassle Free Installation
• Self-Learning Algorithm

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

empty

additional information required
Add more info to confirm vehicle fitment
18
Was $129.99 Details
$75.99

In stock

Only 2 Left!

• All-In-One Data Immobilizer Bypass and Door Lock Interface
• Multibus Architecture With 10 Separate Communication Ports
• Hassle Free Installation
• Self-Learning Algorithm

Diamond Audio VSP4CTRMB

80W Peak (40W RMS) 4" VSP Series 4-ohm Center Dash Midrange Car Speaker

VSP4CTRMB big
Go to item page Right Arrow Icon of Right Arrow

80W Peak (40W RMS) 4" VSP Series 4-ohm Center Dash Midrange Car Speaker

• 80 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4-ohm
• Sensitivity: 90-20000 Hz

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

empty

additional information required
Add more info to confirm vehicle fitment
$239.99

In stock.

• 80 watts Peak Each, 40 watts RMS Each
• Glass Fiber cone material
• Impedance: 4-ohm
• Sensitivity: 90-20000 Hz

Metra 40-VW10 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Mercedes-Benz, Audi, Volkswagen

40-VW10 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Mercedes-Benz, Audi, Volkswagen

• Factory Antenna to Aftermarket Radio Adapter
• Compatible with select 1973-2025 vehicles from Mercedes-Benz, Audi, Volkswagen Vehicles
• Factory antenna with flat plug to aftermarket radio
• A capacitor is included to match the impedance

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

empty

found car based on your search
This product fits your 2003 C-Class
20
Was $11.99 Details
$9.99

In stock

• Factory Antenna to Aftermarket Radio Adapter
• Compatible with select 1973-2025 vehicles from Mercedes-Benz, Audi, Volkswagen Vehicles
• Factory antenna with flat plug to aftermarket radio
• A capacitor is included to match the impedance

Scosche SAMZ5251

2001-2011 Mercedes-Benz C-Class, AMG C-Class Multi 5-1/4" Speaker Adapter

SAMZ5251 big
Go to item page Right Arrow Icon of Right Arrow

2001-2011 Mercedes-Benz C-Class, AMG C-Class Multi 5-1/4" Speaker Adapter

• 5-1/4" Multi Speaker Adapter
• Compatible with 2001-2011 Mercedes-Benz C-Class, AMG C-Class C-Class Vehicles
• Used to install aftermarket speakers in OEM location

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

empty

additional information required
Add more info to confirm vehicle fitment
$17.95

In stock

Only 2 Left!

• 5-1/4" Multi Speaker Adapter
• Compatible with 2001-2011 Mercedes-Benz C-Class, AMG C-Class C-Class Vehicles
• Used to install aftermarket speakers in OEM location

Metra 82-8702

6" - 6-3/4" Speaker Adapter Brackets for select 2000-2011 vehicles from Mercedes-Benz C-Class, Front Door

82-8702 big
Go to item page Right Arrow Icon of Right Arrow

6" - 6-3/4" Speaker Adapter Brackets for select 2000-2011 vehicles from Mercedes-Benz C-Class, Front Door

• Adapters for 6" - 6-3/4" Speakers
• Compatible with select 2000-2011 vehicles from Mercedes-Benz C-Class Vehicles
• Break-Away Tab Design
• Fits Front Doors

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

empty

additional information required
Add more info to confirm vehicle fitment
Was $31.99 Details
$27.99

In stock

• Adapters for 6" - 6-3/4" Speakers
• Compatible with select 2000-2011 vehicles from Mercedes-Benz C-Class Vehicles
• Break-Away Tab Design
• Fits Front Doors

Metra 44-PW530 Antenna

Universal Fully Automatic Power Antenna

44-PW530 big
Go to item page Right Arrow Icon of Right Arrow

Universal Fully Automatic Power Antenna

• Replacement Power Antenna for Select Vehicles
• Replaceable Mast
• Fully Automatic

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

empty

additional information required
Add more info to confirm vehicle fitment
2
Was $213.99 Details
$191.99

In stock

• Replacement Power Antenna for Select Vehicles
• Replaceable Mast
• Fully Automatic

Metra 82-8703

5-3/4" Speaker Adapter Brackets for select 2000-2011 vehicles from Mercedes-Benz C-Class, Rear Door

82-8703 big
Go to item page Right Arrow Icon of Right Arrow

5-3/4" Speaker Adapter Brackets for select 2000-2011 vehicles from Mercedes-Benz C-Class, Rear Door

• Adapters for 5-3/4" Speakers
• Compatible with select 2000-2011 vehicles from Mercedes-Benz C-Class Vehicles
• Break-Away Tab Design
• Fits Rear Doors

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

empty

found car based on your search
Fitment warning: The manufacturer states these adapters fit speaker locations in your vehicle; however, we have yet to verify your vehicle speaker specifications and therefore cannot confirm if or where these adapters will fit.
Was $31.99 Details
$27.99

In stock

• Adapters for 5-3/4" Speakers
• Compatible with select 2000-2011 vehicles from Mercedes-Benz C-Class Vehicles
• Break-Away Tab Design
• Fits Rear Doors

Metra 70-1784 Wiring Harness

Install a new car stereo in select 1980-2017 vehicles from Volkswagen, Audi, Mercedes-Benz

70-1784 big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1980-2017 vehicles from Volkswagen, Audi, Mercedes-Benz

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

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

empty

additional information required
Add more info to confirm vehicle fitment
16
$12.99

In stock

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

Scosche VWAB Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1981-2008 vehicles from Mercedes-Benz

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

Connect your factory antenna to a new aftermarket radio for select 1981-2008 vehicles from Mercedes-Benz

• VW / European Antenna Convertor
• Aftermarter Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1981-2008 vehicles from Mercedes-Benz Vehicles

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

empty

additional information required
Add more info to confirm vehicle fitment
35
$7.99

In stock

Only 1 Left!

• VW / European Antenna Convertor
• Aftermarter Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1981-2008 vehicles from Mercedes-Benz Vehicles

Dynavin D9-MC2000-64GB

7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2000-2006 vehicles from Mercedes-Benz (SiriusXM Ready)

D9-MC2000-64GB big
Go to item page Right Arrow Icon of Right Arrow

7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2000-2006 vehicles from Mercedes-Benz (SiriusXM Ready)

• Compatible with standard audio systems, not with premium fiber optic audio systems
• Custom Fit In-Dash Bluetooth Digital Multimedia Receiver
• 7" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• 3 sets of 3 volts preamp outputs
• 16-Band Parametric Equalizer
• SiriusXM Satellite Radio Ready
• Integrated CANBUS for steering wheel controls

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

empty

found car based on your search
This product fits your 2003 C-Class
$769.99

In stock.

Scosche VWA3RB Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Ford, BMW, Chevrolet

VWA3RB big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1998-2025 vehicles from Ford, BMW, Chevrolet

• select 1998-2025 vehicles from Ford, BMW, Chevrolet Vehicles
• Aftermarket Antenna Female (Motorola Plug) to Factory Radio Male (Proprietary Plug)

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

empty

additional information required
Add more info to confirm vehicle fitment
1
Was $19.99 Details
$9.95

In stock

• select 1998-2025 vehicles from Ford, BMW, Chevrolet Vehicles
• Aftermarket Antenna Female (Motorola Plug) to Factory Radio Male (Proprietary Plug)

Metra 72-9002

Speaker Harness for select 1996-2025 vehicles from Mercedes-Benz, Audi, Chevrolet

72-9002 big
Go to item page Right Arrow Icon of Right Arrow

Speaker Harness for select 1996-2025 vehicles from Mercedes-Benz, Audi, Chevrolet

• Compatible with select 1996-2025 vehicles from Mercedes-Benz, Audi, Chevrolet Vehicles
• For European Vehicles
• Plugs Directly into Vehicles Harness
• Durable Plastic and Metal Materials

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

empty

found car based on your search
This product fits your 2003 C-Class
4
Was $14.99 Details
$12.99

In stock

• Compatible with select 1996-2025 vehicles from Mercedes-Benz, Audi, Chevrolet Vehicles
• For European Vehicles
• Plugs Directly into Vehicles Harness
• Durable Plastic and Metal Materials

Metra 72-9004 Speaker Wiring Harness

Connect new speakers to factory wiring connectors in select 2001-2025 vehicles from Mercedes-Benz

72-9004 big
Go to item page Right Arrow Icon of Right Arrow

Connect new speakers to factory wiring connectors in select 2001-2025 vehicles from Mercedes-Benz

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

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

empty

found car based on your search
This product fits your 2003 C-Class
Was $16.99 Details
$14.99

In stock

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

Scosche MZ2340B / MZ2340 Dash Kit

Install a new Single-DIN car stereo in 2002-2004 Mercedes-Benz C-Class, AMG C-Class (Black)

MZ2340B big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in 2002-2004 Mercedes-Benz C-Class, AMG C-Class (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 Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 2003 C-Class
3
Was $35.47 Details
$22.99

In stock

Only 1 Left!

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

Scosche LMZ30 Wiring Interface

Install new car stereo and retain steering wheel audio controls and safety warning chimes in 2001-2004 Mercedes-Benz C-Class, AMG C-Class

LMZ30 big
Go to item page Right Arrow Icon of Right Arrow

Install new car stereo and retain steering wheel audio controls and safety warning chimes in 2001-2004 Mercedes-Benz C-Class, AMG C-Class

• Provides 12-Volt accessory power (RAP)
• Compatible with non-amplified audio systems
• Retains steering wheel control
• Retains all safety and warning chimes
• Micro-B USB Updatable

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

empty

found car based on your search
This product fits your 2003 C-Class
Was $84.95 Details
$79.95

In stock

Only 3 Left!

• Provides 12-Volt accessory power (RAP)
• Compatible with non-amplified audio systems
• Retains steering wheel control
• Retains all safety and warning chimes
• Micro-B USB Updatable

Scosche VW01B Wiring Harness

Install a new car stereo in select 1975-2017 vehicles from Volkswagen, Audi, Mercedes-Benz

VW01B big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1975-2017 vehicles from Volkswagen, Audi, Mercedes-Benz

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

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

empty

additional information required
Add more info to confirm vehicle fitment
40
Was $8.95 Details
$7.99

In stock

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

Axxess AXDI-MB1 Wiring Interface

Install new car stereo and retains accessory power in select 2001-2018 vehicles from Mercedes-Benz

AXDI-MB1 big
Go to item page Right Arrow Icon of Right Arrow

Install new car stereo and retains accessory power in select 2001-2018 vehicles from Mercedes-Benz

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified audio systems
• Micro-B USB Updatable
• Pre-Wired for ASWC-1 (Sold separately)

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

empty

additional information required
Add more info to confirm vehicle fitment
Was $116.99 Details
$104.99

In stock

• Provides 12-Volt accessory power (RAP)
• Designed for non-amplified audio systems
• Micro-B USB Updatable
• Pre-Wired for ASWC-1 (Sold separately)

Metra 40-VW12 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1981-2008 vehicles from Mercedes-Benz

40-VW12 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1981-2008 vehicles from Mercedes-Benz

• European factory antenna with flat plug to aftermarket radio
• Compatible with select 1981-2008 vehicles from Mercedes-Benz Vehicles

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

empty

additional information required
Add more info to confirm vehicle fitment
13
Was $16.99 Details
$14.99

In stock

Only 3 Left!

• European factory antenna with flat plug to aftermarket radio
• Compatible with select 1981-2008 vehicles from Mercedes-Benz Vehicles

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 your 2003 C-Class

    Q: Can I upgrade the factory stereo system in my 2003 Mercedes-Benz C-Class?

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

    Save up to 10 different vehicles in your garage

    2003 Mercedes-Benz C-Class

    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