Full response here.
Beyond which, I know Moon Audio makes a dedicated RAD-0 cable (it’s wired correctly). I don’t know if the connectors they use are the right diameter to fit the cable entry in a way that has the shell supporting the connector, however.
Also, that’s not an endorsement. I am not a fan. I don’t care for the aesthetics or feel of their cables.
If I was going to do a cable for these, I’d want to get the connectors (or the manufacturer and part number) from Rosson. No idea if they’d provide that information. Absent it, I’d want to verify with the vendor making the cable that their connectors both fully engage, have the correct pin-out AND are properly supported in the cup (not just hanging off the TRS connection).