I have an Autohelm ST 4000 on which the compass acts up maybe 20% of the time and goes crazy hunting around for a heading - as can be seem in the LCD display. Of course the unit cannot steer the boat when this is happening so I would like to replace it, but Raymarine appears to have just discontinued all of their wheel steering models!!! It looks like the only way to replace it is with a below deck hayraulic unit which I don't want to deal with. Any ideas on where I might find a replacement unit?
I would check with Raymarine for parts and service info or with one of their servicing dealers. I would not expect much joy from typical retail outlets that just sell boxes... More's the pity, since that's what We$t Marine has devolved into around here.
Our fair city has a full service independant marine electronics shop; perhaps there is one near you (?).