Here's a picture of the radio operator's station in the B-17G "Mary Alice" at the Imperial War Museum at Duxford:

From the B-17G "Picadilly Princess" at the Fantasy of Flight museum in Polk City, FL:
From the B-17G "Nine-O-Nine", maintained by the Collings Foundation:
Starboard side of radio room:
And the rear bulkhead of the radio room:
I hope that gives you some of the information you need. Notice that the Collings Foundation aircraft is missing cabling visible in the Duxford aircraft.
The images were found in the
B-17 Image Gallery of
Tony Manninen's web site.