atm its not possible to record from a external mixer in Cross software useing the rec function Cross DJ ,crossdj le for xzone bundel .. Cross internal rec function can olny record master out from internal mixer ,thats what the link to the tutorial is about,, think about it and how the music signal is routed ,, two outputs from Cross to your mixer ,,via usb connection ,then to your sound system ,, the tc signal or vinal inputis routed to Cross,to either run tc or play vinal,, then it goes to your external mixer
are you able to play the vinal thru Cross ie you are gettuing the vinal signal to your mixer output