I write this from Oshkosh. I will be happy to send this unit along to the first AMU. GPS/comm is in my hangar at home. If you get this and find anything wrong with it I will refund your money
I will give one proviso that affects all these units. There is an internal battery that can only be serviced by Bendix/King. It only lasts a few years, so most don’t have it. As such the unit will not remember frequencies and won’t recall where it is on startup. The latter is easily dealt with. This is just a characteristic of these boxes. I want to be up front. The GPS can be updated.