An embodiment of a system for controlling a marine vessel includes a torque and/or position sensor configured to measure at least one of a torque applied by a steering wheel of the marine vessel and a rotational position of the steering wheel, and a processing device configured to receive a measurement of the steering wheel and electronically control a steering mechanism at a stern region of the marine vessel. The processing device is configured to estimate an angle of the steering wheel, determine a corresponding angle to be applied to the steering mechanism, and transmit a steering command based on the corresponding angle to an actuation device at the stern region.