I just recently bought a boat that is rigged with a kobelt rudder indicator. The rudder indicator on the screen shows 4degrees, but will not move with the rudder. I tested the potentiometer both at the unit and the input wires with no issues. Recently, I purchased the furuno rotary with all of the correct settings with the exact same problem. All of the wires are correct. The Manules claim that there is a JP-2 jumper for linear and rotary applications, however, I cannot locate it on my panel. Can anyone help?! Getting frustrated.