Embodiments of the present invention recite system for controlling an agricultural vehicle. In one embodiment the system comprises a vehicle guidance system for determining a course correction for the agricultural vehicle based upon position data received from a position determining component. The system further comprises a steering controller coupled with the vehicle guidance system and comprising an electric steering output and a hydraulic steering output. The steering controller is for generating a steering command based upon the course correction determined by the vehicle guidance system. The steering controller is further for automatically determining whether it is coupled with either of a steering component or a hydraulic steering component which is coupled with the steering mechanism of the agricultural vehicle.