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2002 Audi A4

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 2002 Audi A4

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.

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Metra 44-EC6R Antenna Extension

6" Universal Antenna Extension Cable with Right Angle Male

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6" Universal Antenna Extension Cable with Right Angle Male

• Universal Antenna Extender
• Extends Antenna 6" (.5 ft.)
• Right Angle Male Connector

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List price $15.99
-38% $9.99

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• Universal Antenna Extender
• Extends Antenna 6" (.5 ft.)
• Right Angle Male Connector

JL Audio HD-RLC

Flush-Mount Wired Bass Remote Controller for JL Audio HD, MHD and XDM Amplifiers

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Flush-Mount Wired Bass Remote Controller for JL Audio HD, MHD and XDM Amplifiers

• Wired Bass Remote Controller
• Compatible with select JL Audio HD, MHD and XDM amplifiers
• Flush-mountable installation
• Color: Black

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$59.99

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• Wired Bass Remote Controller
• Compatible with select JL Audio HD, MHD and XDM amplifiers
• Flush-mountable installation
• Color: Black

Deaf Bonce Apocalypse DB-SA305 D1

4000W Peak (2000W RMS) 15” Apocalypse Series Dual 1-ohm Car Subwoofer

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4000W Peak (2000W RMS) 15” Apocalypse Series Dual 1-ohm Car Subwoofer

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 1 ohm
• Mount depth: 7.85"
• Sensitivity: 88.30 dB

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$399.90

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Stinger SI4617

17 ft. (5.1 meters) of 6-Channel 4000 Series RCA Interconnect Cables

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17 ft. (5.1 meters) of 6-Channel 4000 Series RCA Interconnect Cables

• 6-Channel 4000 Series RCA Interconnect Cables
• 17 ft. (5.1 meter) Cables
• Stinger Audiophile Grade
• Twisted Pair Construction
• Perfect for 5-Channel Amplifiers
• Durable

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List price $49.00
-14% $41.99

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• 6-Channel 4000 Series RCA Interconnect Cables
• 17 ft. (5.1 meter) Cables
• Stinger Audiophile Grade
• Twisted Pair Construction
• Perfect for 5-Channel Amplifiers
• Durable

Deaf Bonce Apocalypse DB-SA255 D2

2000W Peak (1000W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

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2000W Peak (1000W RMS) 15” Apocalypse Series Dual 2-ohm Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 1000 watts
• Pressed Paper Cone
• Foam Surround
• Impedance: Dual 2 ohm
• Mount depth: 7.4"
• Sensitivity: 87.50 dB

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$259.90

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NVX XLCA2

2-Channel Line Out Converter xBOOST Technology with Remote Bass Knob

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2-Channel Line Out Converter xBOOST Technology with Remote Bass Knob

• 2-channel line out converter
• Speaker Level Input Accepts Up To 400 Watts RMS
• Bass Enhancer And Bass Compensation
• xBOOST Technology
• Selectable Auto On
• 9.5 Volt Pre-Out
• 12 Volt Trigger Out

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• 2-channel line out converter
• Speaker Level Input Accepts Up To 400 Watts RMS
• Bass Enhancer And Bass Compensation
• xBOOST Technology
• Selectable Auto On
• 9.5 Volt Pre-Out
• 12 Volt Trigger Out

Stinger SGP90250

High Power 250Amp Circuit Breaker w/ Built-In Distribution

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High Power 250Amp Circuit Breaker w/ Built-In Distribution

• Stinger Select Circuit Breaker
• Power Rating: 250 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

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List price $139.00
-53% $65.99

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• Stinger Select Circuit Breaker
• Power Rating: 250 Amps
• Push Button Reset
• Water Resistant Housing
• Integrated Holes for Simple Mounting
• Compact and Lightweight Design

Deaf Bonce MFA 4.220

1320W RMS Class D Machete Series 4 Channel Car Amplifier

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1320W RMS Class D Machete Series 4 Channel Car Amplifier

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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$289.90

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Scosche BOBAZT Stereo Connector Kit

Great Connection Kit for Stereo to Car Wire Harness with Zip Ties and Butt Connectors

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Great Connection Kit for Stereo to Car Wire Harness with Zip Ties and Butt Connectors

• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

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• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

Hertz MPCX 2 TM.3 Single

Mille Pro Series Passive Audio Crossover

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Mille Pro Series Passive Audio Crossover

• Specifically developed for Hertz MP 70.3 and Hertz MP25.3
• Two-position (0 / +2 dB) switch for tweeter level adjustments
• Pure copper wire low series resistance inductors

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List price $90.00
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• Specifically developed for Hertz MP 70.3 and Hertz MP25.3
• Two-position (0 / +2 dB) switch for tweeter level adjustments
• Pure copper wire low series resistance inductors

Cerwin Vega HS102D

800W Peak (200W RMS) 10" HED Series Dual 2-ohm Shallow Subwoofer

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800W Peak (200W RMS) 10" HED Series Dual 2-ohm Shallow Subwoofer

• Peak Power: 800 watts
• RMS Power: 200 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Treated Foam Surround
• Mount depth: 3.54"
• Sensitivity: 83.1 dB

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List price $119.99
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SMD 2 Channel Heavy Duty Square Speaker Terminal (Grade 8)

Two Channel Square Speaker Terminal with Grade 8 Terminals, 3/4" PVC (Black)

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Two Channel Square Speaker Terminal with Grade 8 Terminals, 3/4" PVC (Black)

• Heavy duty terminals for serious applications
• Lightweight 3/4" PVC
• Won't break or leak under high pressure
• 5/16" Bolt Terminal
• All Grade 8 Hardware
• Two Channel

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Only 1 Left!

• Heavy duty terminals for serious applications
• Lightweight 3/4" PVC
• Won't break or leak under high pressure
• 5/16" Bolt Terminal
• All Grade 8 Hardware
• Two Channel

Metra 82-4300

1" Universal Spacer Rings for 6.5" to 6.75" Speakers

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1" Universal Spacer Rings for 6.5" to 6.75" Speakers

• Works with most 5 1/4", 6 1/2" and 6 3/4" speakers
• Gives 1 inch extra depth

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• Works with most 5 1/4", 6 1/2" and 6 3/4" speakers
• Gives 1 inch extra depth

AudioControl EPICPRO3NT

360W Peak (280W RMS) 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters

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360W Peak (280W RMS) 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters

• 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters
• 360 watts per pair / 180 watts Peak each
• 280 watts per pair / 140 watts RMS each
• 4 oz. Neodymium magnet motor structure
• 4-ohm impedance

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$99.00

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JL Audio RD400/4

400W RMS Class D RD Series 4 Channel Car Amplifier

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400W RMS Class D RD Series 4 Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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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

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

Omega LINKRLT3

Remote Start Smartphone App Upgrade with Advanced GPS Functionality

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Remote Start Smartphone App Upgrade with Advanced GPS Functionality

• Smartphone remote start car alarm app
• Compatible with Android and iPhone devices
• Unlimited range (subject to service coverage area)
• Shareable with multiple users, with set expiration date
• Premium and Premium Plus service plans available

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List price $199.95
-32% $135.99

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• Smartphone remote start car alarm app
• Compatible with Android and iPhone devices
• Unlimited range (subject to service coverage area)
• Shareable with multiple users, with set expiration date
• Premium and Premium Plus service plans available

Audiovox VODP10

10.1" High-Resolution Digital LED Backlit Overhead Monitor with Two Headphones

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10.1" High-Resolution Digital LED Backlit Overhead Monitor with Two Headphones

• 10.1" High-Resolution Digital LED Backlit Overhead Monitor
• Built-in DVD, USB and HDMI inputs
• Dual channel IR headphone transmitter with 2 headphones
• Display Type: TFT Active Matrix LCD
• Screen Resolution: 1024 x 600

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• 10.1" High-Resolution Digital LED Backlit Overhead Monitor
• Built-in DVD, USB and HDMI inputs
• Dual channel IR headphone transmitter with 2 headphones
• Display Type: TFT Active Matrix LCD
• Screen Resolution: 1024 x 600

NVX XW4BL5

5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

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5 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

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• 5 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

PAC IR-X

Infrared Repeater IR Remote Eye Extender (IRX)

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Infrared Repeater IR Remote Eye Extender (IRX)

• Easy two wire hook up
• Small and easy to mount
• 40 kHz and 56 kHz operation
• Great for RV's, marine, custom hot rods and many other applications

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• Easy two wire hook up
• Small and easy to mount
• 40 kHz and 56 kHz operation
• Great for RV's, marine, custom hot rods and many other applications

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    FAQ for Universal-Fit Audio & Electronics in 2002 A4

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2002 Audi A4?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your A4.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
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    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
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.