Wired and mounted a power socket that will fit in the mid-cabin cover just outboard and below the front seat pilot's right knee. I do have to change the wire terminations from as shown here to 90* spade connectors to relieve stress on the wires since this adapter will mount vertically (didn't think of that until I test fit with the cover in place.
Note: also shown is the adel clamp securing the transponder wiring harness. I ended up removing the dsub connector backshell to reduce the angle of the harness coming out of the connector.
