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2015 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 2015 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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Wet Sounds REVO 8 FA XW-B GRILLE V3

Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

REVO 8 FA XW-B GRILLE V3 big
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Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

• 8" Marine Subwoofer Grille
• Black XW grille design
• REVO 8 FA marine subwoofers sold separately

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$49.99

Available

Ships in 10-14 days

• 8" Marine Subwoofer Grille
• Black XW grille design
• REVO 8 FA marine subwoofers sold separately

Wet Sounds REVO 8 FA XW-W GRILLE V3

Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

REVO 8 FA XW-W GRILLE V3 big
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Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

• 8" Marine Subwoofer Grille
• White XW grille design
• REVO 8 FA marine subwoofers sold separately

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$49.99

Available

Ships in 10-14 days

• 8" Marine Subwoofer Grille
• White XW grille design
• REVO 8 FA marine subwoofers sold separately

Wet Sounds REV 8 Translucent Grille

Translucent Grille for Wet Sounds REV8 8" Tower Speakers

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Translucent Grille for Wet Sounds REV8 8" Tower Speakers

• Translucent grille for Wet Sounds' REV 8 marine tower speakers
• Translucent and clear finish perfect for adding lights
• Grille includes stainless steel overlays for added durability

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$109.99

Available

Ships in 10-14 days

• Translucent grille for Wet Sounds' REV 8 marine tower speakers
• Translucent and clear finish perfect for adding lights
• Grille includes stainless steel overlays for added durability

Wet Sounds WS-4Z-RGB-BB Controller v3 (WS-4Z-RGB-BBControllerv3)

4-Zone Marine Black Box LED Lighting Controller

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4-Zone Marine Black Box LED Lighting Controller

• Marine Black Box LED Lighting Controller
• 4 Independent marine lighting zones
• Powers up to 500 watts of LED lights
Wet Sounds WS-MC-1 marine media receiver required, sold separately
• Operating Voltage: 10-30 volts DC

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$359.99

In stock

• Marine Black Box LED Lighting Controller
• 4 Independent marine lighting zones
• Powers up to 500 watts of LED lights
Wet Sounds WS-MC-1 marine media receiver required, sold separately
• Operating Voltage: 10-30 volts DC

Wet Sounds WS-G2-CTR

3" Marine Wired Color Transom Remote with LCD Display for Wet Sounds MC-20 Source Unit

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3" Marine Wired Color Transom Remote with LCD Display for Wet Sounds MC-20 Source Unit

• Wired transom remote with full color display
• Complete duplicate control of WS-MC-20
• Full color 3" TFT display with back-lit buttons
• 23 ft. extension cable included

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$319.99

In stock

Only 2 Left!

• Wired transom remote with full color display
• Complete duplicate control of WS-MC-20
• Full color 3" TFT display with back-lit buttons
• 23 ft. extension cable included

Wet Sounds ADP TC3-Fixed

1-7/8" to 3" Stainless Steel Fixed Clamp for REV and ICON Series Tower Speakers

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1-7/8" to 3" Stainless Steel Fixed Clamp for REV and ICON Series Tower Speakers

• High-polished stainless steel tower speaker fixed clamps
• Designed to fit tube diameters of 1-7/8" up to 3"
• Fits REV8, REV10, and ICON8 tower speakers
• Includes mounting bolts

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$479.99

In stock

Only 3 Left!

• High-polished stainless steel tower speaker fixed clamps
• Designed to fit tube diameters of 1-7/8" up to 3"
• Fits REV8, REV10, and ICON8 tower speakers
• Includes mounting bolts

Wet Sounds REV 12 HD XZ-B GRILLE

Grilles for Wet Sounds REV 12 Marine Tower Speakers (XZ Black)

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Grilles for Wet Sounds REV 12 Marine Tower Speakers (XZ Black)

• 12" XZ-style grilles for REV 12 HD tower speakers
• Made with rugged plastic, able to withstand harsh conditions
• Includes (2) speaker grilles and (8) allen head screws

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$165.00

Available

Ships in 10-14 days

• 12" XZ-style grilles for REV 12 HD tower speakers
• Made with rugged plastic, able to withstand harsh conditions
• Includes (2) speaker grilles and (8) allen head screws

REV 12 HD XS-B GRILLE

Grilles for Wet Sounds REV 12 Marine Tower Speakers (XS Black)

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Grilles for Wet Sounds REV 12 Marine Tower Speakers (XS Black)

• 12" XS-style stainless steel grilles for REV 12 HD tower speakers
• Made with rugged plastic and stainless steel inlay
• Includes (2) speaker grilles and (8) allen head screws

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$265.00

Available

Ships in 10-14 days

• 12" XS-style stainless steel grilles for REV 12 HD tower speakers
• Made with rugged plastic and stainless steel inlay
• Includes (2) speaker grilles and (8) allen head screws

Wet Sounds ZERO 10 ENC (Like New (Open Box))

Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

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Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

• 10" Single Sealed Truck Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Compatible with ZERO 10 subwoofers (Sold separately)

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List price $299.99
-15% $254.99

In stock

Only 2 Left!

• 10" Single Sealed Truck Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Compatible with ZERO 10 subwoofers (Sold separately)

Wet Sounds STEALTH XT 12-B

300W Peak 33.74" Stealth XT Series 12-Speaker Amplified Bluetooth Soundbar with Remote

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300W Peak 33.74" Stealth XT Series 12-Speaker Amplified Bluetooth Soundbar with Remote

• Peak Power: 300 watts
• Built-in D amplifier
• Weatherproof IPX-7 rating enclosure
• (12) 3" Full-range speakers
• (4) 1" tweeters
• USB playback and charging
• AUX input for smartphones and MP3
• Dimensions: 33.74" W x 3.85" H x 4.04" D

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$999.99

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Only 1 Left!

• Peak Power: 300 watts
• Built-in D amplifier
• Weatherproof IPX-7 rating enclosure
• (12) 3" Full-range speakers
• (4) 1" tweeters
• USB playback and charging
• AUX input for smartphones and MP3
• Dimensions: 33.74" W x 3.85" H x 4.04" D

Wet Sounds WS-SUB 650 ES

150W Peak (75W RMS) Loaded Single 6.5" Vented Marine and Powersports Enclosure

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150W Peak (75W RMS) Loaded Single 6.5" Vented Marine and Powersports Enclosure

• Ported enclosure with 1 6.5" Subwoofer
• 75 watts RMS (150 watts Peak)
• Final Impedance: 4-ohm

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$399.99

In stock

Only 1 Left!

Wet Sounds ZERO 10 ENC

Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

ZERO 10 ENC big
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Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

• 10" Single Sealed Truck Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Compatible with ZERO 10 subwoofers (Sold separately)

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$299.99

In stock

Like New from: $254.99

Wet Sounds LED RING 10-BLUE

10" Blue LED Acrylic Light Ring for Wet Sounds 10" XS and SW Subwoofers

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10" Blue LED Acrylic Light Ring for Wet Sounds 10" XS and SW Subwoofers

• 10" Blue LED translucent ring for Wet Sounds subwoofers
• Injection-molded acrylic ring
• LEDs operate off of standard 12V Power
• Compatible with Wet Sounds 10" XS and SW series marine subwoofers (Sold separately)

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List price $174.99
-29% $124.99

In stock

Only 1 Left!

• 10" Blue LED translucent ring for Wet Sounds subwoofers
• Injection-molded acrylic ring
• LEDs operate off of standard 12V Power
• Compatible with Wet Sounds 10" XS and SW series marine subwoofers (Sold separately)

Wet Sounds STEALTH AS-10

500W Peak Loaded Single 10" Sealed Amplified Marine Subwoofer Enclosure

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500W Peak Loaded Single 10" Sealed Amplified Marine Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 500 watts Peak
• Built-In Class D amplifier
• Variable Bass Boost
• Wired remote bass level controller

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2
$899.99

In stock

Used from: $707.93

• 10" Amplified Loaded Subwoofer System
• 500 watts Peak
• Built-In Class D amplifier
• Variable Bass Boost
• Wired remote bass level controller

Wet Sounds MC-TR-MINI

Mini Transom Remote for Wet Sounds MC-1, MC-2, and MC-5 Source Unit

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Mini Transom Remote for Wet Sounds MC-1, MC-2, and MC-5 Source Unit

• Mini transom remote for MC-1, MC-2, or MC-5 source units
• Controls power, source, volume, track selection, play/pause
• Back-lit buttons for easier visibility and operation
• 25 ft. 3.5 mm AUX cable included

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$84.99

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Ships in 10-14 days

• Mini transom remote for MC-1, MC-2, or MC-5 source units
• Controls power, source, volume, track selection, play/pause
• Back-lit buttons for easier visibility and operation
• 25 ft. 3.5 mm AUX cable included

Wet Sounds WW-BT VC-V2

Marine Bluetooth Controller with Volume Knob

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Marine Bluetooth Controller with Volume Knob

• Marine Bluetooth Controller with Volume Knob
• Controls volume, play, pause and track forwards/backwards
• Perfect add-on for the Wet Sounds WS 420 SQ marine equalizer (Sold separately)
• Flush in-dash or under dash mounting options

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$154.99

Available

Ships in 10-14 days

• Marine Bluetooth Controller with Volume Knob
• Controls volume, play, pause and track forwards/backwards
• Perfect add-on for the Wet Sounds WS 420 SQ marine equalizer (Sold separately)
• Flush in-dash or under dash mounting options

Wet Sounds REVO 10 SW-B GRILLE V3 (Like New (Open Box))

Grille for Wet Sounds 10" REVO 10 Marine Subwoofers (Black)

REVO 10 SW-B GRILLE V3 big
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Grille for Wet Sounds 10" REVO 10 Marine Subwoofers (Black)

• 10" Marine Subwoofer Grille
• Black SW grille design
• REVO 10 marine subwoofers sold separately

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List price $59.99
-15% $50.99

In stock

Only 2 Left!

• 10" Marine Subwoofer Grille
• Black SW grille design
• REVO 10 marine subwoofers sold separately

Wet Sounds WW-BT-UR

Universal Marine Bluetooth Receiver

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Universal Marine Bluetooth Receiver

• Universal Marine Bluetooth Receiver
• Add-on controller for amplified soundbars and speaker systems
• Controls volume and tracking
• 3.5mm female connection for main output

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$84.99

In stock

Only 2 Left!

• Universal Marine Bluetooth Receiver
• Add-on controller for amplified soundbars and speaker systems
• Controls volume and tracking
• 3.5mm female connection for main output

Wet Sounds MC-TR

Marine Wired Transom Remote with LCD Display for Wet Sounds MC-1 or MC-2 Source Unit

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Marine Wired Transom Remote with LCD Display for Wet Sounds MC-1 or MC-2 Source Unit

• Wired transom remote with single-line LCD
• Connects to MC-BB via built-in 10"cable (or included 23' cable)
• Controls source, playback, and volume settings
• Connect (2) MC-TRs via optional MC-TR Y cable

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$239.99

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• Wired transom remote with single-line LCD
• Connects to MC-BB via built-in 10"cable (or included 23' cable)
• Controls source, playback, and volume settings
• Connect (2) MC-TRs via optional MC-TR Y cable

Wet Sounds WW-BT RS

Marine Bluetooth Rocker Switch Receiver

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Marine Bluetooth Rocker Switch Receiver

• Marine Bluetooth Rocker Switch Receiver
• Add-on controller for amplified soundbars and speaker systems
• Controls volume and tracking
• 3.5mm female connection for main output

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1
$149.99

In stock

• Marine Bluetooth Rocker Switch Receiver
• Add-on controller for amplified soundbars and speaker systems
• Controls volume and tracking
• 3.5mm female connection for main output

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

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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.