I have a 1987 Catalina 34; my autohelm 4000 is old and does not seem to be working-- is yours compatable, if you know. I would like to simply replace mine, or use another for necessary parts- Raymarine tells me they no longer have parts to fix mine !
Please feel free to e-mail me at uclaesq@aol.com or call me at (818) 632-4198
Bruce Davis