Just about to do the symphony II to RNS-E install in an S4 cab. Started to check the harness to ensure all the wiring is in the right place and have read the various links about moving the K line and the BOSE. On the Harness I have (Kufatec) the B7 pin (BOSE) loops into the D12 (main ground) which is now confussing me. Am I missing something? I assume I should cut and re wire so the BOSE on the harness meets the wire of the original wiring? If no BOSE would it loop in this way? I did state when ordering, cd, bose, phone!! I assume Kufatec missed out the BOSE wire? Appreciate the help in this hour of need.