EZWH8F2A-TY18U | 2-Amplifier Plug-and-Play Audio Wiring System (Non-JBL Systems)

Factory Radio Integration – No Cutting, No Guesswork

Upgrade your vehicle’s sound system the right way. This 2-amplifier plug-and-play wiring system is designed to seamlessly integrate two aftermarket amplifiers with your factory head unit—without cutting, splicing, or modifying factory wiring.

Engineered for clean installs and OEM-level reliability, the system allows one amplifier to be mounted under the driver’s seat and a second amplifier under the passenger seat, keeping wiring runs short, organized, and noise-free.

 Key Features

• Supports Dual Amplifiers

Easily connect two amplifiers to the factory radio—ideal for running separate amps for front/rear speakers and subwoofers.

• True Plug-and-Play Design

Vehicle-specific radio T-harness plugs directly into the factory head unit for a fast, non-invasive installation.

• Optimized Under-Seat Mounting

Designed for clean routing to both driver-side and passenger-side amplifier locations.

• Clean Signal Integration

RCA output adapters provide reliable, low-noise audio signal to your amplifiers.

• Installer-Friendly & Reversible

No factory wires are cut—system can be removed at any time and returned to stock.

What’s Included

• Radio T-Harness Adapter
• Amplifier Speaker Output Adapter
• 8-Foot Plug-and-Play Harnes
• RCA Output Adapters (for amplifier signal input)
• Remote Turn-On Signal Adapter

Ideal For

• Factory radio systems and aftermarket head units with RCA adapters (AIN-RCA3 adapter set sold separately)
• Multi-amplifier audio builds
• OEM-style installs with aftermarket performance
• Professional installers and DIY enthusiasts alike

Compatible with: 

• 2020 - 2024 Toyota 4Runner (non-JBL)
• 2020 - 2023 Toyota Tacoma (non-JBL)
• 2018 - 2024 Toyota Camry (non-JBL)
• 2019 - 2022 Toyota Corolla (non-JBL)

Why Choose This System?

This harness system eliminates the most common installation headaches—signal routing, wire identification, and factory integration—while delivering a clean, professional result. Whether you’re building a high-end sound system or upgrading in stages, this solution gives you flexibility, reliability, and a factory-clean finish.