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2025 Audi Q3

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 2025 Audi Q3

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 IBWRD00

Dual 1/0-Gauge to Single 1/0 Gauge Input Wire Reducers

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Dual 1/0-Gauge to Single 1/0 Gauge Input Wire Reducers

• Dual 1/0-gauge input and output to 1/0-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

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List price $49.99
-10% $44.99

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• Dual 1/0-gauge input and output to 1/0-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

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

Deaf Bonce MFA 4.180

1080W RMS Class D Machete Series 4 Channel Car Amplifier

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1080W RMS Class D Machete Series 4 Channel Car Amplifier

• 180 watts x 4 channel @ 4 ohm
• 270 watts x 4 channel @ 2 ohm
• Bridged: 540 watts x 2 channel @ 4 ohm
• Total RMS Power: 1080 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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$259.90

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FREE Belva Amp Kit at Checkout!
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.

Metra 44-UA20 Antenna

Replacement Amplified Hide-Away Antenna

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Replacement Amplified Hide-Away Antenna

• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

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List price $76.99
-57% $32.99

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• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

Metra 44-UA200 Antenna

Amplified AM/FM Antenna that will help you get better signal for clarity (Metra 44-UA200)

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Amplified AM/FM Antenna that will help you get better signal for clarity (Metra 44-UA200)

• High Performance Windshield or Glass Mount Amplified Antenna
• Separate AM/FM Amplifiers • Ground wire for noise-cancellation
• LED Indicator confirms amplifier operation

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• High Performance Windshield or Glass Mount Amplified Antenna
• Separate AM/FM Amplifiers • Ground wire for noise-cancellation
• LED Indicator confirms amplifier operation

Cobra PRO 3000W (CPI3000W)

6000W Peak (3000W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

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6000W Peak (3000W RMS) DC to AC Professional Grade Power Inverter with USB Fast Charging

• Modified Sine Professional Grade Power Inverter
• 3000 watts RMS, 6000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design
• Remote controller LCD included

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$399.95

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• Modified Sine Professional Grade Power Inverter
• 3000 watts RMS, 6000 watts Peak
• Includes direct to battery cables
• LED digital display indicator
• Rugged industrial design
• Remote controller LCD included

Rockford Fosgate Prime R2 R2-1200X1

1200W RMS Class D Prime Series Monoblock Car Amplifier

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1200W RMS Class D Prime Series Monoblock Car Amplifier

• 400 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 2 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

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FREE NVX Amp Kit at Checkout!
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Used from: $382.49

Metra 89-50-0900

Universal Trim Rings

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Universal Trim Rings

• Universal Double-DIN trim rings
• For Double-DIN radio installations

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List price $27.99
-54% $12.99

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• Universal Double-DIN trim rings
• For Double-DIN radio installations

Deaf Bonce Apocalypse ATOM-700.2 PRO

700W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

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700W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

• 230 watts x 2 channel @ 4 ohm
• 480 watts x 2 channel @ 2 ohm
• 700 watts x 2 channel @ 1 ohm
• Bridged: 960 watts x 1 channel @ 4 ohm
• 14000 watts @ 2 ohm
• Total RMS Power: 700 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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NVX VCW154v3RC

Recone Kit for VCW154v3 Version 3 Subwoofers

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Recone Kit for VCW154v3 Version 3 Subwoofers

• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 4-ohm
• CA glue adhesive is NOT included

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• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 4-ohm
• CA glue adhesive is NOT included

Stinger SHD21

HPM Series Power or Ground Distribution Block with Satin Chrome Finish

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HPM Series Power or Ground Distribution Block with Satin Chrome Finish

• HPM Series Power or Ground Distribution Block
• Two 1/0 Gauge or 4 Gauge Inputs
• Four 4/8 Gauge Outputs
• Multiple Input/Output Design
• Protective Cover Included
• Corrosion Resistant Satin Chrome Finish

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-51% $23.99

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• HPM Series Power or Ground Distribution Block
• Two 1/0 Gauge or 4 Gauge Inputs
• Four 4/8 Gauge Outputs
• Multiple Input/Output Design
• Protective Cover Included
• Corrosion Resistant Satin Chrome Finish

JL Audio STACK KIT-3

Stacking Hardware for 3 Slash v2 & v3 Amplifiers

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Stacking Hardware for 3 Slash v2 & v3 Amplifiers

Stacking Hardware for Three Slash v2 Amplifiers
• Made With JL Audio High Quality
• Precision Machined
• Colored Black

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Stacking Hardware for Three Slash v2 Amplifiers
• Made With JL Audio High Quality
• Precision Machined
• Colored Black

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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Stinger SGW991

9 Conductor Speedwire 100ft Roll

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9 Conductor Speedwire 100ft Roll

• 9 Conductor 18 Gauge Speaker Wire
• Nine Cables In One
• Flexible Jacketing • Ideal For 4-Channel Amplifiers
• Easy Installation

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-56% $88.00

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• 9 Conductor 18 Gauge Speaker Wire
• Nine Cables In One
• Flexible Jacketing • Ideal For 4-Channel Amplifiers
• Easy Installation

JBL BassPro 12

Single Loaded 12" Ported Amplified Subwoofer Enclosure with Bass Remote

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Single Loaded 12" Ported Amplified Subwoofer Enclosure with Bass Remote

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

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List price $419.95
-13% $364.95

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Used from: $255.46

Belva BAAUXUSB

USB and AUX Car Audio Adapter

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USB and AUX Car Audio Adapter

• USB/AUX input
• 6-foot cable
• front-mounted USB-A port and 3.5mm aux input
• 1" mounting hole required
•Easy screw in style installation

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-47% $7.99

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• USB/AUX input
• 6-foot cable
• front-mounted USB-A port and 3.5mm aux input
• 1" mounting hole required
•Easy screw in style installation

JL Audio M6-8IB-S-GwGw-4

200W RMS 8" M6 Series Single 4-ohm Marine Subwoofer with Gloss White Sport Grille

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200W RMS 8" M6 Series Single 4-ohm Marine Subwoofer with Gloss White Sport Grille

• RMS Power: 200 watts
• Impedance: Single 4 ohm
• Injection Molded Polypropylene Cone
• Synthetic Rubber Surround
• Mount depth: 5.07"
• Sensitivity: 86.8 dB

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$349.99

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JBL SHOCK WAVE 4T

140W Peak (70W RMS) 4" 4-ohm Pro Audio Bullet Horn Tweeters

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140W Peak (70W RMS) 4" 4-ohm Pro Audio Bullet Horn Tweeters

• 4" Titanium Pro-Audio Bullet Horn Super Tweeters
• 70 watts Peak Each
• 35 watts RMS Each
• 4 ohm Impedance

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• 4" Titanium Pro-Audio Bullet Horn Super Tweeters
• 70 watts Peak Each
• 35 watts RMS Each
• 4 ohm Impedance

American International SG-600DX

Universal 1" Spacers for 5.25" to 6" Speakers

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Universal 1" Spacers for 5.25" to 6" Speakers

• Universal spacers for car speakers
• Includes 2 spacers (screws not included)
• Compatible Speaker Size: 5.25" to 6"
• Spacer Thickness: 1"

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List price $19.99
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• Universal spacers for car speakers
• Includes 2 spacers (screws not included)
• Compatible Speaker Size: 5.25" to 6"
• Spacer Thickness: 1"

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

Deaf Bonce Apocalypse ATOM-900.2 PRO

900W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

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900W RMS Class D Apocalypse Atom Pro Series 2-Channel Full Range Car Amplifier

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

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$229.90

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Kicker CXARC (46CXARCT)

Wired Bass Remote Controller for CX Series Amplifiers

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Wired Bass Remote Controller for CX Series Amplifiers

• Wired bass remote controller for Kicker CX series amplifiers
• Works with DX or PX series amplifiers with remote bass jack
• Includes 19.5 ft. cable and mounting accessories

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• Wired bass remote controller for Kicker CX series amplifiers
• Works with DX or PX series amplifiers with remote bass jack
• Includes 19.5 ft. cable and mounting accessories

NVX XKIT46

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 5/6-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 5/6-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 5/6-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

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Save 30% off an NVX XKIT46 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT46 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Used from: $90.99

Escort 0020057-2

Original StickyCup Car Mount for Escort Radar Detectors

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Original StickyCup Car Mount for Escort Radar Detectors

• Original StickyCup silicone suction windshield mount
• Compatible with Escort radar detectors
• Small and reliable mounting suction with strong adhesion
• Easy release tab ensures strong suction to the windshield

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• Original StickyCup silicone suction windshield mount
• Compatible with Escort radar detectors
• Small and reliable mounting suction with strong adhesion
• Easy release tab ensures strong suction to the windshield

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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NVX QBUS10P

500W Peak (200W RMS) 10" Under-Seat Powered Car Subwoofer System

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500W Peak (200W RMS) 10" Under-Seat Powered Car Subwoofer System

• Low Profile Ported Subwoofer System
• 200 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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• Low Profile Ported Subwoofer System
• 200 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Tru Spec Single 12" (1447TS)

Empty Single 12" Vented Prefabricated Enclosure for Sundown SA12V2 Subwoofers

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Empty Single 12" Vented Prefabricated Enclosure for Sundown SA12V2 Subwoofers

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.75 cubic feet
• Compatible for Sundown SA12V2 subwoofers (Sold separately)

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NVX VAD22008 v2 (VAD22008v2)

2200W RMS Class D V-Series 8-Channel Car, Marine and Powersports Amplifier

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2200W RMS Class D V-Series 8-Channel Car, Marine and Powersports Amplifier

• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

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• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

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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NVX STBXC32 (Open Box, Great)

32 sq. ft. Black Subwoofer Box/Trunk Liner Carpet with Adhesive Backing

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32 sq. ft. Black Subwoofer Box/Trunk Liner Carpet with Adhesive Backing

• Extremely durable fabric that will stand up to heavy usage
• Adhesive backing allows for an easier installation process
• Easy to cut, fit, and mold to desired shape or size
• Stain resistant
• Color: Black
• Carpet Thickness: 1/8 inch

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-44% $34.99

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• Extremely durable fabric that will stand up to heavy usage
• Adhesive backing allows for an easier installation process
• Easy to cut, fit, and mold to desired shape or size
• Stain resistant
• Color: Black
• Carpet Thickness: 1/8 inch

Limitless Lithium LL3.5A-MTN-SV

3.5A 12V Portable Automatic Smart Lithium Battery Maintainer

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3.5A 12V Portable Automatic Smart Lithium Battery Maintainer

• Portable Automatic Smart Lithium Standard Voltage Maintainer
• Lithium Lifepo4 Battery Maintainer 3.5 Amp
• Designed for charging 12 volts batteries
• Shuts off when the battery is charged
• Can be used as a "Maintainer" for all lifepo4 batteries

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$89.00

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• Portable Automatic Smart Lithium Standard Voltage Maintainer
• Lithium Lifepo4 Battery Maintainer 3.5 Amp
• Designed for charging 12 volts batteries
• Shuts off when the battery is charged
• Can be used as a "Maintainer" for all lifepo4 batteries

BOYO Vision VTSW4

4-Channel Video Switcher with Trigger Wires

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4-Channel Video Switcher with Trigger Wires

• Video switch with trigger wires
• 4 camera input and 1 video output
• 4 trigger wires for each camera

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List price $71.00
-10% $63.90

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• Video switch with trigger wires
• 4 camera input and 1 video output
• 4 trigger wires for each camera

Kicker 49ST3TRK (ST3TW)

1" Bullet Tweeter Recone Kit for Kicker ST 1" Bullet Tweeter

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1" Bullet Tweeter Recone Kit for Kicker ST 1" Bullet Tweeter

• Aluminum diaphragm recone kit
• Designed for Kicker ST3TW bullet tweeter
• Field replaceable - no glue required.

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• Aluminum diaphragm recone kit
• Designed for Kicker ST3TW bullet tweeter
• Field replaceable - no glue required.

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

Limited time!

Rockford Fosgate RFC10HB 10 Farad Hybrid Capacitor

Hybrid Digital Stiffening Capacitor and Distribution Block

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Hybrid Digital Stiffening Capacitor and Distribution Block

• 10 farad Hybrid Digital Capacitor
• Increases quality of sound
• Increases level of bass
• Platinum plated

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• 10 farad Hybrid Digital Capacitor
• Increases quality of sound
• Increases level of bass
• Platinum plated

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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PAC VS41

Universal Intelligent and Compact 4-Camera Switcher

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Universal Intelligent and Compact 4-Camera Switcher

• Universal fit
• Supports 4 cameras, front, rear, back and sides
• Works on factory and aftermarket radios, factory radios require interface
• Automatically activates when put in reverse or turn signals activated

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List price $309.00
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• Universal fit
• Supports 4 cameras, front, rear, back and sides
• Works on factory and aftermarket radios, factory radios require interface
• Automatically activates when put in reverse or turn signals activated

Heise RGBW-PT1

5-pin RGBW Hardwire Pigtail Adapter

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5-pin RGBW Hardwire Pigtail Adapter

• 5-pin RGBW Hardwire Pigtail Adapter
• Designed for use with RGBW-CB1 controller (Sold separately)
• Cable Length: 6 inches

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-14% $5.99

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• 5-pin RGBW Hardwire Pigtail Adapter
• Designed for use with RGBW-CB1 controller (Sold separately)
• Cable Length: 6 inches

Limited time!

Memphis SRX1240

500W Peak (250W RMS) 12" Street Reference Series Single 4-ohm Car Subwoofer

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500W Peak (250W RMS) 12" Street Reference Series Single 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

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Viper D9957V

2-Way 5-Button Remote Start and Car Alarm LED Transmitters

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2-Way 5-Button Remote Start and Car Alarm LED Transmitters

• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

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List price $399.99
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• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

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    FAQ for Universal-Fit Audio & Electronics in 2025 Q3

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2025 Audi Q3?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your Q3.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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