Thanks for the help! I’ll see if I can spend some time this weekend taking a look.
To clarify, the second image is showing the desired end result / wiring where the plug housing (black wire) is tied to Pin 2 (shield wire)?
And a potentially dumb question, but am I disassembling the DIN cable itself, or just looking at the wires inside of the Beogram where the various wires from the cable connect to the board?