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2015 Audi S8

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 S8

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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Rockford Fosgate PMX-ANT Antenna

AM/FM/WB Amplified 12V Antenna

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AM/FM/WB Amplified 12V Antenna

• PMX-ANT AM/FM/WB Amplified 12V Antenna
• Universal AM/FM/WB Antenna
• Omnidirectional
• Quick Power Connect for Easy Installation

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• PMX-ANT AM/FM/WB Amplified 12V Antenna
• Universal AM/FM/WB Antenna
• Omnidirectional
• Quick Power Connect for Easy Installation

Rockford Fosgate RFCB140 Circuit Breaker

140A Platinum Plated Circuit Breaker with 1/0-AWG / 4-AWG Inputs/Outputs

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140A Platinum Plated Circuit Breaker with 1/0-AWG / 4-AWG Inputs/Outputs

• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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Rockford Fosgate R2-1200X1 with Amplifier Wiring Kit

Rockford Fosgate 1200W Monoblock Amplifier

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Rockford Fosgate 1200W Monoblock Amplifier

• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• R.L.C. Remote Level Control
• Includes Amplifier Wiring Kit

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-11% $530.20

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• 400 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• R.L.C. Remote Level Control
• Includes Amplifier Wiring Kit

Rockford Fosgate Prime R2 R2-200X2

200W RMS Class D Prime Series 2 Channel Car Amplifier

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200W RMS Class D Prime Series 2 Channel Car Amplifier

• 50 watts x 2 channel @ 4 ohm
• 100 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 2-Channel Amplifier

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FREE Belva Amp Kit at Checkout!
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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Rockford Fosgate R500X1D 500W RMS + 4 Gauge Amp Kit

500W RMS Prime Series Class D Monoblock Amplifier + 4 Gauge Full Spec CCA Amplifier Wiring Kit for Systems up to 650 Watts

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500W RMS Prime Series Class D Monoblock Amplifier + 4 Gauge Full Spec CCA Amplifier Wiring Kit for Systems up to 650 Watts

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Remote PLC (Punch Level Control) Included
• Efficient Class-D circuit topology
• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 650 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2-Channel Twisted RCA Cables

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List price $369.98
-16% $309.99

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• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Remote PLC (Punch Level Control) Included
• Efficient Class-D circuit topology
• 4 Gauge Power Amplifier Installation Kit
• Ideal for Systems Up to 650 Watts
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 2-Channel Twisted RCA Cables

Rockford Fosgate Prime R2 R2-500X1

500W RMS Class D Prime Series Monoblock Car Amplifier

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500W RMS Class D Prime Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

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FREE Belva Amp Kit at Checkout!
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.
Used from: $263.49

Rockford Fosgate PMX50C

50 foot extension cable

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50 foot extension cable

• Extension Cable
• Length: 50 feet

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• Extension Cable
• Length: 50 feet

Rockford Fosgate RFCB200

200 Amp Circuit Breaker

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200 Amp Circuit Breaker

• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

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• 1/0-AWG / 4-AWG inputs
• Platinum plated
• Low-resistance, high-current ability
• Set screw style connection - no need for ring terminals

Rockford Fosgate Power T1000-1bdCP

1000W RMS Class BD Power Series Monoblock Car Amplifier

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1000W RMS Class BD Power Series Monoblock Car Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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FREE NVX Amp Kit at Checkout!
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.
Used from: $560.99

Rockford Fosgate RFFMXI

4 AWG or 8 AWG Inline MAXI-Fuse Holder

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4 AWG or 8 AWG Inline MAXI-Fuse Holder

• Accepts 4 AWG or 8 AWG wire
• Custom tooled solid brass
• HPP plating for superior corrosion resistance
• Platinum Finish

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• Accepts 4 AWG or 8 AWG wire
• Custom tooled solid brass
• HPP plating for superior corrosion resistance
• Platinum Finish

Rockford Fosgate PMXYC

Punch Marine Y Cable for PMX-1R and PMX-0R

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Punch Marine Y Cable for PMX-1R and PMX-0R

• Marine Y-Adaptor Cable
• Compatible extension cable for PMX-1R and PMX-0R

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$49.99

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• Marine Y-Adaptor Cable
• Compatible extension cable for PMX-1R and PMX-0R

Rockford Fosgate R500X1D Amplifier + Free Belva BAK42BK 4 Gauge Amp Kit

R500X1D 500W RMS Prime Series Class D Monoblock Amplifier 4 Gauge Wiring Kit with 2-Channel RCA Interconnects

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R500X1D 500W RMS Prime Series Class D Monoblock Amplifier 4 Gauge Wiring Kit with 2-Channel RCA Interconnects

• R500X1D 500W RMS Prime Series Class D Monoblock Amplifier
• BAK42 Complete 4 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects (CCA Wiring)

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-16% $309.99

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• R500X1D 500W RMS Prime Series Class D Monoblock Amplifier
• BAK42 Complete 4 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects (CCA Wiring)

Rockford Fosgate RFDGM

GM Battery Post Extender

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GM Battery Post Extender

• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

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• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

Rockford Fosgate RGB-YC

Color Optix Y adapter cable to be used with PMX-RGB

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Color Optix Y adapter cable to be used with PMX-RGB

• IPX7 rated Deutsch™ / Amphenol™ Element Ready™ connectors
• Controller illuminates up to 8 Color Optix™ speakers and/or subwoofers

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$16.99

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Ships in 10-14 days

• IPX7 rated Deutsch™ / Amphenol™ Element Ready™ connectors
• Controller illuminates up to 8 Color Optix™ speakers and/or subwoofers

Rockford Fosgate M2-750X5

750W RMS M2-Series 5-channel Marine Amplifier

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750W RMS M2-Series 5-channel Marine Amplifier

• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

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• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

Rockford Fosgate RFDGML

Platinum Plated Long GM Battery Post Extender For Double Stacked Terminals

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Platinum Plated Long GM Battery Post Extender For Double Stacked Terminals

• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

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• HPP plating for superior corrosion resistance
•Custom tooled solid brass
• Allows additional power or ground connections
• Contains One (1) Terminal Bolt

Rockford Fosgate P500-12P

1000W Peak (500W RMS) 12” Punch Series Amplified Ported Subwoofer Enclosure

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1000W Peak (500W RMS) 12” Punch Series Amplified Ported Subwoofer Enclosure

• 12" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control

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• 12" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Wired Remote Bass Level Control

Rockford Fosgate Power T500-1bdCP & BAK42 4 AWG Amp Kit

500W RMS Constant Power Series Class BD Monoblock Amplifier

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500W RMS Constant Power Series Class BD Monoblock Amplifier

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• Dynamic Power Output: 690W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 11-7/16"L x 8-3/16"W x 2-3/16"H

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-6% $574.48

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Only 2 Left!

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 500W x 1 @ 1 ohm
• Dynamic Power Output: 690W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 11-7/16"L x 8-3/16"W x 2-3/16"H

Rockford Fosgate RFFDAGU

Fused AGU Distribution Block with 1/0 AWG or 4 AWG inputs and 4 AWG or 8 AWG outputs

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Fused AGU Distribution Block with 1/0 AWG or 4 AWG inputs and 4 AWG or 8 AWG outputs

• Platinum plated AGU style fused distribution, flexibility of multiple wire size inputs and outputs. Allows for 2 AGU style fuses. Accept 1/0 AWG and 4 AWG inputs. (2) 4 AWG/8 AWG outputs.

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$54.99

In stock

Only 2 Left!

• Platinum plated AGU style fused distribution, flexibility of multiple wire size inputs and outputs. Allows for 2 AGU style fuses. Accept 1/0 AWG and 4 AWG inputs. (2) 4 AWG/8 AWG outputs.

Rockford Fosgate RFIF2SW Speaker to RCA Adapter

High Level Speaker Line Wire Input To Female RCA Output Adapter

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High Level Speaker Line Wire Input To Female RCA Output Adapter

• Speaker Line High Level Input To Female RCA Output Adapter
• Converts Factory (OEM) High Level Speaker Outputs into RCA Outputs for Use with an Aftermarket Amp

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• Speaker Line High Level Input To Female RCA Output Adapter
• Converts Factory (OEM) High Level Speaker Outputs into RCA Outputs for Use with an Aftermarket Amp

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    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your S8.

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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.