Axxess LOC T-Harness For 2018-2021 Toyota Full System or Subwoofer LOC — Big Jeff Audio Dealer Platform
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  • Seamless Audio Integration: Easily connect a subwoofer or complete audio system with this vehicle-specific Active LOC T-harness by Proscenium.
  • Enhanced Compatibility: Designed to work with Proscenium's active line output converters and Axxess LOCs, it's compatible with most sound processors, line output converters, and amplifiers.
  • Simplified Installation: Provides convenient access to factory radio speaker-level output signals, streamlining the installation process.
  • Comprehensive Connections: Includes 12V (with in-line 10A fuse), ground, and remote turn-on leads for comprehensive system connection.
  • Easy Setup: Install by disconnecting the factory radio and connecting the two T-harness plugs, allowing the radio to remain fully connected while adding amplifier wires.

Axxess LOC T-Harness For 2018-2021 Toyota Full System or Subwoofer LOC-TYH2

This Listing Includes:

  • (1) Main T-Harness

  • (1) Set of Speake Wire

  • (1) Remote Wire

Upgrade your Toyota vehicle's audio system effortlessly with the Proscenium Vehicle-Specific Active LOC T-Harness designed for models manufactured between 2018 and 2021. This T-harness facilitates the seamless integration of a subwoofer or complete audio system into your car. Designed to work with Proscenium's active line output converters and Axxess LOCs, this T-harness ensures compatibility with most sound processors, line output converters, and amplifiers with high-level inputs, providing versatile options for enhancing your audio experience. The T-harness grants convenient access to speaker-level output signals from your factory radio, simplifying the installation process for a hassle-free setup. Equipped with 12V (with in-line 10A fuse), ground, and remote turn-on leads, this T-harness facilitates comprehensive connections to your audio system.


  • Fits 2018-2021 Toyota vehicles

  • 10-pin and 28-pin T-harness for non-amplified systems

  • Add a standalone subwoofer or complete audio system

  • Harness connections: 12V (with in-line 10A fuse), ground, remote turn-on wire with butt connector, 4-channel speaker-level outputs

  • Input and output quick-connect harness for easy installation

  • Works with both Proscenium and Axxess line output converters

Payment Information


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All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
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Shipped orders that are returned by the shipping company due to an
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20% restocking fee.

If package is refused or marked undeliverable and returned
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full to have the package sent back to you or we can refund the money
minus the cost of shipping


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please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.