No...you can't access radio there either. Still comes up black.
I've done a little research, and since these are Boeings from FSX and adapted to P3d, it seems I somehow accidentally deleted a GAUGE or something for the radios in the Boeings. Could be a CAB file, don't know.
Hopefully, someone can help me with restoring this gauge. I really enjoy the Boeing files on Rickoooo and would certainly like to use them in Prepar3dv4.