Alpine Plug & Play 5-Channel Amplifier & 10" Subwoofer Kit | '14 - '21 Tundra

Alpine 5-Channel Amplifier & 10" Subwoofer Kit

Compatible with Factory or Aftermarket Head Units | Designed for 2014–2021 Toyota Tundra (CrewMax Only)

Bring next-level performance to your Tundra’s sound system with the Trail Grid Pro Alpine Plug & Play 5-Channel Amp & Subwoofer Kit. Built around the Alpine S2-A55V 5-Channel Amplifier and the Alpine S2-W10D4 10" Subwoofer, this all-in-one system is engineered to deliver tight, controlled bass, crisp mids, and smooth highs—perfectly balanced for your truck's cabin acoustics.

At Trail Grid Pro, we’ve engineered this kit specifically for the Tundra using a custom-fit subwoofer enclosure (designed and manufactured by Trail Grid Pro in Frederick, MD) and an amp bracket designed for a factory-style fit. Installation is made simple with AudX’s plug-and-play harnessing—no cutting, splicing, or guesswork required. Whether you’re a seasoned DIYer or just getting started, this kit gives you professional-level results right out of the box.

What's Included

• Alpine S2-A55V 5-Channel Amplifier – Drives your full-range speakers and subwoofer with precision.
• Alpine S2-W10D4 10" Subwoofer – Punchy, clean bass that fills your Tundra’s cabin.
• Trail Grid Pro Subwoofer Enclosure – Fits behind the driver’s side rear seat for seamless integration.
• Audx Bass Control Knob - Custom-made to work perfectly with the Kicker amp
• AudX Amplifier Bracket – Custom-made for a secure, OEM-like amp install.
• AudX Plug & Play Main Harness – Pre-wired, soldered, shrink-wrapped, and Tesa-taped for pro-quality installs.
• AudX T-Harness – Enables amp connection without cutting factory wiring.
• RCA Adapters – Ensures clean signal to the amplifier.
• Trail Grid Pro Amp Install Kit – Includes power wiring, ground, fuse, terminals, and more.
• 10mm Ground Bolt – Provides a solid electrical ground.
• 10x Zip Ties – Keep your wiring clean and organized.

Alpine S2-A55V 5-Channel Amplifier

Key Features:

• Hi-Res Audio Certified (up to 40kHz)
• Compact Class D design
• 5 channels: 4 full-range + 1 subwoofer
• Adjustable crossovers & bass boost
• Side-mounted controls and dual terminals
• Compatible with factory and aftermarket systems

Technical Specs:

• Power Output:
• 40W x 4 + 200W x 1 @ 4Ω
• 60W x 4 + 300W x 1 @ 2Ω
• 120W x 2 (bridged) + sub
• Signal-to-Noise Ratio: >83dB
• Frequency Response: 20Hz – 40kHz
• Damping Factor: >100
• Inputs: RCA & speaker-level
• Dimensions: 11.9” W × 2.25” H × 8.25” D
• Fuses: 2 × 30A

Alpine S2-W10D4 10" Subwoofer

Key Features:

• Dual 4-ohm voice coils with flexible wiring options
• Carbon fiber/poly cone for strength and clarity
• HAMR surround for deep excursion and tight bass
• Compact mounting depth for versatile installations
• 1.05 Cubic feet of air-space in the TGP Tundra subwoofer enclosure

Technical Specs:

• RMS Power Handling: 600W
• Peak Power: 1800W
• Sensitivity: ~84.5 dB
• Frequency Response: 25Hz – 215Hz
• Mounting Depth: ~4.66”
• Xmax (one-way): 15mm

The Trail Grid Pro Advantage

We’ve done the hard work for you—designing, pre-wiring, and pre-fitting every component. With our 2-year no-questions-asked warranty and everything built in-house at our Frederick, Maryland facility, you can be confident in both quality and fit.

Upgrade your Tundra’s audio without the headaches. This is premium sound made easy.