My old 23.5 had tiller Pilot
My old boat (a 92 23.5) had a tiller pilot installed on it. I did not install it, it came with the boat but how it was done was. 1. a bracket was attached to the bottom of the tiller to bring the 'pin even with the top of the seats. 2. on the port seat the mount for the tiller pilot was attached.3. on the side of the seat (where you calfs are) the connections for the Autopilot was mounted.To use you would put the pin of the autopilot into the mount of the seat, screw in the autopilot connect, and then place the end of the autopilot arm on the pin, on the bracket which is attached to the tiller.