Frasca Bendix King radios. Help

[_alioth_]

Hi.
I am building a Piper Comanche cockpit with a2a comanche software. Sometime ago I built the Com2/Nav2 radios with real bendix king ky196 faceplates, but homemade displays and dual enncoders.
The result is fine, but knobs are not bendix king style and displays are red. Almost everything in my cockpit are real gauges and this one does not look as real as I would want.

Now I have found a pair of old Frasca kx165, which have real faceplates, knobs, and displays. I have attached pics.
The idea is to replace the navcom2 2 x ky196 with this kx165.

Does anyone knows how to power and interface it?
I would appreciate any hints.
I haven't found any info about it.

Thanks in advance.