See all parts that fit your 2009 TT
1000W Peak (400W RMS) Reference Series 4-Channel Amplifier
• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz
Connect your factory antenna to a new aftermarket radio for select 1973-2025 vehicles from Audi, Mercedes-Benz, Volkswagen
$7.99
List price $11.99
6.5" to 6.75" Speaker Mounting Adapters for select 2004-2023 vehicles from Audi, Volkswagen
$19.99
List price $33.99
Install New Speakers in select 1994-2024 vehicles from Audi, Mercedes-Benz, Chevrolet
$10.99
List price $14.99
Universal 6.5" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$21.99
List price $34.99
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, Android Auto
$269.99
Universal 5.25" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)
$16.99
List price $19.99
360W Peak (120W RMS) 6.5" GTO Series 2-Way Full Range Coaxial 3-ohm Car Speakers
$117.99
List price $180.00
800W Peak (100W RMS) 6.5" Stage1 Series 2 Way Coaxial 4-ohm Speakers
$49.95
List price $89.95
• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz
PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
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(newest, current model)
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(previous model, replaced by Infinity Reference 704A)
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(previous model, replaced by Infinity Reference 704A)
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(previous model, replaced by Infinity Reference 475a)
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6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera
$329.99
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready
$349.99
List price $420.00
7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)
$329.95
List price $349.95
150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers
$79.95
List price $109.95
6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)
$599.99
List price $750.00
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
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• Total RMS Power: 500 watts
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List price $659.99
Manufacturer:
Model Number:
Reference 704A
Weight:
9.13lbs
Internal SKU:
ref704a
Internal Product ID:
112335
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$80 off other shops and infinity to boot
I upgraded my 2015 altima with infinity speakers so when this amp was on special it made perfect sense to finish off upgrade with it . Everything I has gotten from Sonic has been great so easy choice
4 found this helpful
Best 4 channel amp
This amp is a little monster. It puts out more than enough power. Small and very easy to install. Highly recommend. Thanks Sonic Electronix for always having great deals.
3 found this helpful
Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire
(61)
$49.99
List price $79.99
Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire
(28)
$49.99
List price $79.99
4 Gauge Premium (CCA) Copper Clad Aluminum Amplifier Power Wiring Kit with Speaker Wire
(20)
$24.99
List price $49.99
4 Gauge 100% (OFC) Oxygen Free Copper Amplifier Power Wiring Kit with Speaker Wire
(78)
$99.99
List price $131.99
Universal Remote Bass Level Control Knob
Flush Mount & Universal via RCA. Works with any amp, controls your bass output
(8)
$7.99
List price $14.99
The XLOC44X helps you easily integrate with your factory or aftermarket system
(1)
$64.99
List price $149.99
NVX XIX45 X-Series RCA Interconnect Cable
16.4 ft. of 4-Channel X-Series RCA Cable with Dual Twisted Pair Hyper-Flex Technology
(24)
$23.99
List price $28.99
NVX V-Series RCA Interconnect Cable
19 ft. of 4-Channel RCA cable with dual twisted-pair conductors
(35)
$15.99
List price $32.99
NVX XIV45 4-Channel RCA Audio Interconnect Cable
5 Meters (16.4 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology
(27)
$16.99
List price $29.99
All-in-one cable for speaker and amp installation (20 feet)
(2)
$29.99
List price $47.99
75 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire
(21)
$34.99
List price $44.99
80 Amp Smart Relay Isolator (XSBI80)
Smart isolator - Monitors and auto-charging feature!
(2)
$24.99
List price $49.99
Great for isolating a second batter making it dedicated to the stereo system
(10)
$15.99
List price $19.99
200 Amp Smart Relay Isolator (XSBI200)
Smart isolator - Monitors and auto-charging feature!
(6)
$49.99
List price $79.99
200 Amp Relay Isolator (BIR200)
Great for isolating a second batter making it dedicated to the stereo system
(17)
$49.99
List price $59.99
500 Amp Smart Relay Isolator (XSBI500)
Smart isolator - Monitors and auto-charging feature!
(8)
$89.99
List price $109.99
500 Amp Relay Isolator (BIR500)
Does not create a voltage drop to the second battery like conventional isolators
(36)
$79.99
List price $95.99
True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block
(33)
$109.99
List price $131.99
1.0 Farad Capacitor with Digital Red Display for up to 1000W Max
(80)
$38.99
List price $79.99
Belva Nine Function Digital Multimeter
Perfect for any installation and troubleshooting
(7)
$9.99
List price $29.99
Universal Positive/Negative 1/0 or 4 Gauge Battery Terminal
Make installation a breeze with the XBTU
(19)
$14.99
List price $24.99
World's Smallest AFS / Mini ANL Fuse Holder
Accepts 4 gauge or 8-gauge wire
(15)
$9.99
List price $19.99
4/8 Gauge Mini ANL (MANL, AFS) Fuse Holder
4/8 Gauge Mini ANL (MANL, AFS) Fuse Holder
(11)
$4.99
List price $9.99
High Quality Element Resistant AGU Fuse Holder
Belva BAGUH2 AGU Fuse Holder
(2)
$4.99
List price $9.99
Modular Linkable ANL Fuse Block
Modular Linkable ANL Fuse Block
(4)
$14.99
List price $59.99
ANL/Mini-ANL Fuse Holder with 1/0 or 4 Gauge Input and Output
No-fail termination and current flow, it helps keep your system protected and running smoothly
(50)
$12.99
List price $24.99
4/8 Gauge Mini-ANL/MANL/AFS Fuse Holder
4/8 Gauge Mini-ANL/MANL/AFS Fuse Holder
(6)
$7.99
List price $9.99
4 Pack of 80 Amp Nickel-Plated MANL Fuse
Mini-ANL (MANL/AFS) 80A Nickel Plated Fuses
(19)
$3.99
List price $8.99
4 Pack of 100 Amp Nickel-Plated MANL Fuse
Mini-ANL (MANL/AFS) 100A Nickel Plated Fuses
(17)
$3.99
List price $8.99
4 Pack of 150 Amp Nickel-Plated MANL Fuse
Mini-ANL (MANL/AFS) 150A Nickel Plated Fuses
(11)
$3.99
List price $8.99
2 Pack of 100 Amp Nickel-Plated ANL Fuse
ANL 100A Nickel plated for better power transfer
(8)
$3.99
List price $7.99
2 Pack of 200 Amp Nickel-Plated ANL Fuse
Two fuses per order. High quality 200 Amp ANL Fuses
(22)
$3.99
List price $7.99
2 Pack of 300 Amp Nickel-Plated ANL Fuse
Two fuses per order. High quality 300 Amp ANL Fuses
(19)
$3.99
List price $7.99
Gauge Reducer, 4 Gauge Input to 8 Gauge Pin
Great for amplifiers that do not accept a large gauge power wire
(23)
$9.99
List price $19.00
Pair of 4 Gauge Spade Terminals, #8 Opening
Spade Terminals • 4 Gauge • 1 Red & 1 Black • Nickel Plated
(7)
$1.99
List price $3.99
4 Gauge Ring Terminals, 5/16" Opening
Nickel Plated Brass - 5 Pieces (3 Red & 2 Black)
(3)
$4.99
List price $6.99
4 Gauge Ring Terminals with 3/8" Opening (5 Pieces)
4 Gauge Ring Terminals with 3/8" Opening (5 Pieces)
(8)
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List price $9.99
(4-pack) 4 Gauge Solid Copper Ring Terminals with Shrink Tubing
(4-pack) 4 Gauge Solid Copper Ring Terminals with Shrink Tubing
(25)
$7.99
List price $9.99
Marine Grade Bluetooth Audio Controller/Receiver
Marine Grade Bluetooth Audio Controller/Receiver
(10)
$49.99
List price $62.49
Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob
(15)
$59.99
List price $99.99
Rear-View Integration Interface with Incandescent Camera for select 2012-2019 Beetle with MFD3/RNS-315 Navigation Stereos
$321.30
List price $499.80
250W 8" Reference Series Single 4 ohm Subwoofer
(72)
$59.95
List price $99.95
Front and Rear View Integration Interface for select 2016-2023 TT Quattro with 4G Systems
$548.10
List price $852.60
Multi-View Integration Interface for select 2013-2025 vehicles from Audi
$249.99
List price $646.80
Rear-view Integration for Toyota Corolla / 2014 (Pre-production) Vehicles
$81.00
List price $126.00
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
