The THTON12 utilizes OEM connectors to ensure factory fit, and most importantly, simplifies installation. The THTON12 is compatible with VIPER DS4 Systems, covering select 2021+ Toyota & Lexus Smart Key vehicles.
Q: What type of product is this?
A: This product is a harness.
Q: What is the parts warranty for this product?
A: The parts warranty for this product is one year.
Q: Is this harness compatible with Viper DS4 systems?
A: Yes, the harness is compatible with Viper DS4 Remote Start Systems.
Q: Are OEM connectors utilized in this harness?
A: Yes, OEM connectors are utilized to ensure factory fit.
Q: Does this T-harness simplify installation?
A: Yes, this T-harness simplifies installation.
Q: Is this harness compatible with remote start systems?
A: Yes, this harness is compatible with remote start systems.
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The THTON12 utilizes OEM connectors to ensure factory fit, and most importantly, simplifies installation. The THTON12 is compatible with VIPER DS4 Systems, covering select 2021+ Toyota & Lexus Smart Key vehicles.

Outfit your car with this Directed Electronics remote start T-harness for select 2010 and up Toyota and Lexus smart key vehicles. The plug-and-play design of the factory-fit connectors makes installation fast and hassle-free. This Directed Electronics remote start T-harness is compatible with DS4 and DS4+ systems that support modern features and customization.
Install a security system or remote start in your vehicle in less than half the time with this Directed Electronics T-harness. The plug-and-play design cuts down on the need to route separate wires and reduces the loss of key vehicle functions. This Directed Electronics T-harness comes with simple instructions and is compatible with select Chrysler, Dodge and Jeep vehicles.

Install a new vehicle remote start system with this Directed Electronics T-harness. Its efficient construction helps reduce required installation time, and it provides a plug-and-play interface to simplify the process. This Directed Electronics T-harness fits a wide range of compatible Toyota, Honda, Mazda, Ford and GM vehicles for seamless integration.
| Pros for Viper - DS4 T-Harness for Select 2021+ TOYOTA / LEXUS Smart Key vehicles - Black | |||
|---|---|---|---|
| There were no pros for this product— | Overall Performance | There were no pros for this product— | Overall Performance, Installation Ease, Compatibility, Connectivity, Wiring |