Alpine Plug & Play 5-Channel Amplifier Kit | '14 - '21 Tundra

Alpine S2-A55V Plug & Play 5-Channel Amplifier Kit

Works with both Factory and Aftermarket Head Units

Upgrade the sound system in your 2014–2021 Toyota Tundra with the Alpine S2-A55V 5-Channel Amplifier Package, engineered for seamless integration with both Amplified (Non-JBL) and Non-Amplified factory setups. This complete solution delivers the dynamic power and precision your truck deserves — from tighter, more controlled bass to crisp detail across your entire music library.

Note: This kit is not compatible with JBL-amplified Tundra models.

At the heart of this package is the Alpine S2-A55V 5-Channel Amplifier, a compact powerhouse designed to deliver clean, efficient output to your speakers and subwoofer. To make installation effortless, the package includes an AudX T-Harness and Main Harness for true plug-and-play connectivity—no cutting or splicing required. A Tundra-specific mounting bracket is also included for a secure, factory-quality fit.

To ensure a complete installation, you’ll also receive our Trail Grid Pro Amplifier Installation Kit, RCA adapters, a 10 mm ground bolt, and zip ties — giving you everything needed for a clean, professional install.

Key Features

• Compact Class D design for powerful, efficient output
• Five channels: four full-range + one dedicated subwoofer channel
• Designed for seamless integration with 2014–2021 Toyota Tundra systems
• Compatible with both Amplified (Non-JBL) and Non-Amplified factory setups
• Adjustable crossovers and gain controls for precision tuning
• Plug-and-play installation with included harnesses — no cutting required
• Clean highs, detailed mids, and tight, controlled bass
• Works with both factory and aftermarket head units

Specs:

• Dimensions: 11.9″ W × 2.25″ H × 8.25″ D
• Weight: ~7 lbs
• Operating Voltage: 14.4 V
• Total Harmonic Distortion: <0.1%
• RMS Power Output:
  • 40W × 4 + 200W × 1 @ 4 Ω
  • 60W × 4 + 300W × 1 @ 2 Ω
• Bridged Output: 120W × 2 @ 4 Ω
• Signal-to-Noise Ratio: >83 dB
• Frequency Response: 20 Hz – 40 kHz (main channels)
• Damping Factor: >100
• Inputs: RCA and speaker-level inputs
• Fuses: Dual 30A

What’s Included

• Alpine S2-A55V 5-Channel Amplifier – Powers your entire system with Alpine clarity and precision.
• AudX Tundra Amplifier Mounting Bracket – Custom-fit bracket for a clean, factory-like install.
• Bass Control Knob – Easily adjust your subwoofer level on the fly.
• AudX T-Harness – Plug-and-play integration for a no-splice install.
• AudX Plug & Play Main Harness – Simplifies your setup for faster installation.
• RCA Adapters – Ensure proper signal flow to your amplifier.
• Trail Grid Pro Amplifier Install Kit – Complete wiring and hardware package.
• 10 Zip Ties – Keep your wiring neat and secure.
• 10mm Ground Bolt – Provides a reliable, factory-quality ground connection.

Built to Trail Grid Pro standards, this kit balances Alpine performance with total installation convenience. You’ll enjoy professional-grade sound in your Tundra without the hassle of a complicated setup — just plug, play, and experience the upgrade.