Axxess LOC-TYH1 Active LOC T-Harness Toyota Scion Subaru

Add a Subwoofer or Full Amp System Without Cutting Factory Wiring — Axxess LOC-TYH1

Upgrading your Toyota, Scion, or Subaru audio system doesn't have to mean cutting into your factory wiring. The Axxess LOC-TYH1 is an active LOC T-harness engineered for non-amplified factory systems, letting you add a standalone subwoofer amplifier or a complete 4-channel audio system with a clean, plug-and-play installation. Your factory speakers keep working exactly as they should — no interruptions, no compromises.

Key Features

• Active LOC T-Harness: 10-pin and 6-pin mating plugs stay connected during installation, ensuring factory speakers continue to receive power from the radio throughout the upgrade.
• Pre-Wired Subwoofer Output: Speaker-level audio output on the radio side of the LOC T-harness is ready for a dedicated subwoofer amplifier or powered subwoofer right out of the box.
• 4-Channel Amplifier Compatible: Wiring can be adjusted using the 8-pin connectors to integrate a full 4-channel amplifier into your factory system.
• Routes Amp Outputs Back Through Factory Wiring: Includes all materials needed to send your aftermarket amplifier's output back through the factory wiring to reach the speakers — keeping the install clean and hidden.
• Clearly Labeled Wire Bundle: Color-coded labels indicate exactly which wires to disconnect and where to connect your amplifier outputs — no guesswork.
• Works with Axxess Line Output Converters: Designed to pair seamlessly with Axxess LOC products for a complete integration solution.
• Step-by-Step Instruction Manual Included

Harness Connections Include

• 12V power (with in-line 10A fuse)
• Ground
• Remote turn-on wire with butt connector
• 4-channel speaker-level outputs
• Input and output quick-connect harness

Compatible Vehicles

This active LOC T-harness covers a wide range of non-amplified Toyota, Scion, and Subaru vehicles including:

• Toyota: 4Runner, 86, Avalon, C-HR, Camry, Celica, Corolla, Cressida, Echo, FJ Cruiser, Highlander, Land Cruiser, Matrix, MR2, MR2 Spyder, Paseo, Pickup, Previa, Prius, RAV4, Sequoia, Sienna, Solara, Supra, T100, Tacoma, Tercel, Tundra, Van, Venza, Yaris (various years 1980–2020)
• Scion: FR-S, iQ, tC, xA, xB, xD (various years 2004–2016)
• Subaru: BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, WRX, WRX STI (various years 2013–2021)

Why the LOC-TYH1?

This active LOC T-harness is the professional installer's choice for clean, reversible audio upgrades on Toyota and Subaru platforms. No cutting, no splicing, no signal degradation — just a solid connection that preserves your factory system while unlocking the full potential of your aftermarket amplifier.

Professional installation available at Best Auto Sound & Security in Central Texas. Contact us to schedule your build.