Mayday Avionics Grand Rapids MI.

[hharney]

Great shop, good auto pilot pilot repair but bring your wallet. These older units are not easy to chase down issues. Could get lucky but best to be prepared.

Call Tim @ 616-957-4920 and drop my name. Tim is one of the owners and will be able to give you the best suggestions. Bob is the auto pilot expert and knows the Cessna gear. They will shoot straight and tell you the best options.

Autopilots Central would be another good spot in Tulsa. Haven't personally used them but they do have a good reputation. With Mayday in my backyard haven't has any need to go anywhere else.