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2012 Audi A3

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 2012 Audi A3

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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JL Audio XD-BTS Battery Terminal

Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

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Ultra-Compact Universal Brass Battery Connector Terminal with Marine-Grade Stannum Plating - Positive or Negative

• Ultra-Compact Battery Connector, Positive or Negative
• 10 - 4 Gauge
• High-Temperature Polycarbonate Cover
• Marine-Grade Stannum Plating

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$44.99

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• Ultra-Compact Battery Connector, Positive or Negative
• 10 - 4 Gauge
• High-Temperature Polycarbonate Cover
• Marine-Grade Stannum Plating

AudioControl EPICENTER MICRO PRO

2-Channel Digital Bass Processor and Line Out Converter with ACR-4 Bass Remote

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2-Channel Digital Bass Processor and Line Out Converter with ACR-4 Bass Remote

• Digital Bass Restoration Processor
AudioControl ACR-4 bass remote included
• Speaker and line-level (RCA) inputs
• ParaBass equalization circuitry for bass shaping

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$229.00

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• Digital Bass Restoration Processor
AudioControl ACR-4 bass remote included
• Speaker and line-level (RCA) inputs
• ParaBass equalization circuitry for bass shaping

(2) Alpine W10S4 10" Bass Subwoofers + Belva 3000W Amplifier + 4 Gauge Amp Kit

750W Max 10" Single 4 ohm Car Subwoofer Package (Includes 2 Subs, Amp, and Amp Kit)

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750W Max 10" Single 4 ohm Car Subwoofer Package (Includes 2 Subs, Amp, and Amp Kit)

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

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-26% $364.88

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• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

AudioControl SPK-10S4

700W RMS 10" Spike Series Single 4-ohm High-Performance Car Subwoofer

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700W RMS 10" Spike Series Single 4-ohm High-Performance Car Subwoofer

• RMS Power: 700 watts
• Impedance: Single 4 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 5.32"
• Sensitivity: 83.7199 dB

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List price $229.00
-9% $209.00

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JL Audio SGRU-13

Mesh Grille for JL Audio 13" W3v3 and TW5v2 Subwoofers

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Mesh Grille for JL Audio 13" W3v3 and TW5v2 Subwoofers

• 13" Grille Made Specifically for the JL Audio 13W1v2, 13W3v3, or 13TW5 Sub
• Provides the Best Protection Possible
• Top-Notch JL Audio Quality
• Metal Mesh Grille Painted Black

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$64.99

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• 13" Grille Made Specifically for the JL Audio 13W1v2, 13W3v3, or 13TW5 Sub
• Provides the Best Protection Possible
• Top-Notch JL Audio Quality
• Metal Mesh Grille Painted Black

Limited time!

NVX VBTERM2

Round Push Style Outer Design Terminal Cups With Chrome-Plated Contacts

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Round Push Style Outer Design Terminal Cups With Chrome-Plated Contacts

• Universal Round Chrome-plated Terminal Cup for Speaker & Subwoofer boxes
• Chrome-plated contacts for optimal signal transfer
• Screw binding posts for a tight secure connection
• Positive (Red) and negative (Black) indicators to ensure proper wiring
• Easy to install and use

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• Universal Round Chrome-plated Terminal Cup for Speaker & Subwoofer boxes
• Chrome-plated contacts for optimal signal transfer
• Screw binding posts for a tight secure connection
• Positive (Red) and negative (Black) indicators to ensure proper wiring
• Easy to install and use

SMD CC-1 Crossover Calibrator

Crossover Calibrator (CC1)

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Crossover Calibrator (CC1)

• Crossover Calibrator
• Also Matches The Gain Settings On Amp(s)
• Circuitry Is Digital Microprocessor Controlled
• Crossover -3dB Point Accuracy +/- 0.25dB
• Auto-Shut Off Timer

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• Crossover Calibrator
• Also Matches The Gain Settings On Amp(s)
• Circuitry Is Digital Microprocessor Controlled
• Crossover -3dB Point Accuracy +/- 0.25dB
• Auto-Shut Off Timer

MTX Audio RTP8A

360W Peak (120W RMS) Loaded Single 8" Vented Enclosure

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360W Peak (120W RMS) Loaded Single 8" Vented Enclosure

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS (360 watts Peak)
• Built-In amplifier
• Variable bass boost
• Speaker-Level Inputs
• EBC wired remote bass level control

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• 8" Amplified Loaded Subwoofer System
• 120 watts RMS (360 watts Peak)
• Built-In amplifier
• Variable bass boost
• Speaker-Level Inputs
• EBC wired remote bass level control

NVX VAD17001 v2 (VAD17001v2)

3400W Peak (1700W RMS) Class D V-Series Monoblock Car/Marine/Powersports Amplifier with Bass Remote

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3400W Peak (1700W RMS) Class D V-Series Monoblock Car/Marine/Powersports Amplifier with Bass Remote

• 800 watts x 1 channel @ 4 ohm
• 1350 watts x 1 channel @ 2 ohm
• 1700 watts x 1 channel @ 1 ohm
• Total RMS Power: 1700 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Available Offers (3) for NVX VAD17001 v2 (VAD17001v2)
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List price $335.99
-23% $259.99
$233.99 with coupon | Price details
2026-07-12 23:59:00
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
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2026-07-30 12:30:00
Used from: $177.27

MTX TN10-04

300W Peak (150W RMS) 10" Terminator Series Single 4-ohm Car Subwoofer

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300W Peak (150W RMS) 10" Terminator Series Single 4-ohm Car Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4-11/16"
• Sensitivity: 84.9 dB

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$79.95

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Crux CSV-01B

Universal Fender Mount Side View Camera (Black)

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Universal Fender Mount Side View Camera (Black)

• Universal Fender Mount Side View Camera
• Mounting Style: Fender Mount
• Resolution: 976 x 496 (600TV lines)
• Camera Housing Color: Black

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-38% $92.95

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• Universal Fender Mount Side View Camera
• Mounting Style: Fender Mount
• Resolution: 976 x 496 (600TV lines)
• Camera Housing Color: Black

Limited time!

NVX XFDBU2

2 Position Fused Distribution Block with One 0/1 Gauge Input and two 4/8 Gauge Outputs

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2 Position Fused Distribution Block with One 0/1 Gauge Input and two 4/8 Gauge Outputs

• One 1/0 Gauge Input
• Two 4 Gauge or 8 Gauge Output
• Satin Chrome Plated Terminals
• All Brass Hardware

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-25% $14.99

• One 1/0 Gauge Input
• Two 4 Gauge or 8 Gauge Output
• Satin Chrome Plated Terminals
• All Brass Hardware

JL Audio MMC-6

6 ft. MediaMaster remote controller cable

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6 ft. MediaMaster remote controller cable

• Media Master Remote controller cable
• 6-foot Extension Cable

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$34.99

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• Media Master Remote controller cable
• 6-foot Extension Cable

JL Audio MMC-2Y

2-way Y-splitter for MediaMaster remote controllers

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2-way Y-splitter for MediaMaster remote controllers

• Use to connect multiple MediaMaster Remote Controllers
• 2-way Y-splitter

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$34.99

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• Use to connect multiple MediaMaster Remote Controllers
• 2-way Y-splitter

Metra 107-UN02 Dash Kit

Install a new Double-DIN car stereo (Matte Black)

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Install a new Double-DIN car stereo (Matte Black)

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

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List price $85.99
-41% $50.99

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

AudioControl SPK-10S2

700W Peak (500W RMS) 10" Spike Series Single 2-ohm High-Performance Car Subwoofer

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700W Peak (500W RMS) 10" Spike Series Single 2-ohm High-Performance Car Subwoofer

• Peak Power: 700 watts
• RMS Power: 500 watts
• Impedance: Single 2 ohm
• Paper Fiber with Mica Coating Cone
• Rubber Surround
• Mount depth: 5.32"
• Sensitivity: 82.2488 dB

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List price $229.00
-9% $209.00

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Cobra RAD 480i

Radar and Laser Detector with Bluetooth and App Control

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Radar and Laser Detector with Bluetooth and App Control

• Multiple Band Radar and Laser Detector
• Long range detection
• 2nd generation false alarm filtering
• Built-in Digital Signal Processing (DSP)
• Sensitivity (SEN) button
• Defender database

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$149.95

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• Multiple Band Radar and Laser Detector
• Long range detection
• 2nd generation false alarm filtering
• Built-in Digital Signal Processing (DSP)
• Sensitivity (SEN) button
• Defender database

Cerwin Vega VPAS12

600W Peak (250W RMS) Loaded Single 12" Under Seat Powered Subwoofer Enclosure with Passive Radiator

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600W Peak (250W RMS) Loaded Single 12" Under Seat Powered Subwoofer Enclosure with Passive Radiator

• 12" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs

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• 12" Amplified Loaded Subwoofer System
• 250 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs

Tru Spec Dual 10" (1459UN)

Empty Dual 10" Vented Prefabricated Enclosure

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Empty Dual 10" Vented Prefabricated Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2 cubic feet
• Compatible for Sundown SA10V2 and similar subwoofers (Sold separately)

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2 Pack of 150 Amp Nickel-Plated ANL Fuse (Belva BANL150)

Two fuses per order. High quality 150 Amp ANL Fuses

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Two fuses per order. High quality 150 Amp ANL Fuses

• 150A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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• 150A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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    FAQ for Universal-Fit Audio & Electronics in 2012 A3

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2012 Audi A3?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your A3.

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