The after-market AutoTrac Controller Steering Kit is designed to allow producers to add John Deere's AutoTrac guidance system to any tractor (regardless of type, age, or brand) that has hydraulic steering-with no modifications needed to the steering wheel and operator area. The kit, which is dealer-installed, integrates with a JD precision ag display and StarFire receiver to provide a complete guidance system. It utilizes hydraulic and electrical components that reportedly provide a quick guidance line acquisition with the feel and function of a fully integrated system.