Is it the Point-1 AP heading sensor?
That unit needs to be free and clear of any electrical interference. That is most likely your problem. Relocate the heading sensor and you issue will most likely be resolved.
Excellent working order. Going in a different direction at the stern of the boat. NMEA 2000 & Radar capable. Includes the following items:
Head Unit/Bracket
Power Cable
Sun Shield
Airmar TM165HW CHIRP Transducer & Cable
Bought new in 2023. Simrad Cruise 9. Comes with the unit, mounting bracket, sun shield, power cord and 83/200 transducer. Built in US Coastal Charts
Unit is like new $475.00
Click here for the Unit Specs