I have two autohelms. One has a rather tired servomotor unit (feeds back from rudder) The second was given to me and has a good motor but needs plugs. My remote no longer works but I think that is due to corrosion of the plug pins. I also have a wind vane attachment but that is also corroded and the vane part is broken. DSon't have the mony to replace and I thought that the unit worked well anyway over 2000 ocean miles. WHat do I do about spares? I do have a spare circuit board for the compass unit and a spare armature for the motor. Thanks Jim Willis