Wirraway, the badge looks good.
My thought was that the cables attach in line with and right behind the engine nacelles that are closest to the fuselages, just from looking at the photo. I think there were brackets that were external to the wing skin. There must have been so means of disconnecting the cables, perhaps the brackets had latches of some time operated by the crew. On the cable closest in the picture I think I can see a clevis on the end of the cable.