The Directed Electronics THFON1 is a vehicle-specific plug-and-play T-harness designed for select 2008–2017 Ford vehicles. Engineered for use with Directed DS4 and DS4+ remote start and security systems, this harness allows installers to connect directly to the vehicle's factory wiring without extensive cutting or splicing. The THFON1 streamlines installation, reduces labor time, and helps preserve the integrity of the OEM electrical system. Key Features Designed for use with Directed DS4 and DS4+ remote start systems Plug-and-play installation minimizes wire cutting and splicing Vehicle-specific connectors provide secure OEM-style integration Reduces installation time and complexity Maintains factory wiring integrity Supports remote start, security, and data interface installations Professional-grade construction for reliable performance Ideal for professional installers and advanced DIY applications Vehicle Compatibility Fits select 2008–2017 Ford vehicles, including: Ford F-150 Ford Super Duty (F-250, F-350, F-450) Ford Explorer Ford Expedition Ford Escape Ford Edge Ford Flex Ford Taurus Ford Fusion Ford Ranger (select applications) Vehicle compatibility varies by model year, trim level, ignition type, and factory equipment. Verify application before purchase. Specifications Part Number: THFON1 Product Type: Remote Start / Security T-Harness Compatibility: Directed DS4 and DS4+ systems Installation Type: Plug-and-play Vehicle-Specific: Ford Connector Style: OEM factory connectors What's Included THFON1 T-harness Vehicle-specific connectors Installation documentation