Hopefully there is an autopilot expert out there that can help... I have been having some trouble with my Raymarine autopilot. The unit worked flawlessly all last season. After a spending a long spring rewiring the boat, I am afraid something may have been "altered". The problem... when i switch to auto the boat slowly turns rudder hard left or right (depending on which way it is already favoring) and stays there. The autopilot forces the boat to do circles. I replaced the rudder reference transducer already. Help!
autopilot=
Raymarine smart pilot w/ st6002 head unit
Manual
Boat=
1992 Penn Yan 295 Prowler
twin inboards
hydro steering