I think you are mentioning the cable with rubber-like corrugated outer sleeve.
I had 1987 model Sondek with Ittok and used it for 17 years.
If you value a more modern sound, get rid of that cable.
It makes Sondek mid-bass prominent and sound a little bit rolled off and closed in.I replaced it with Kimber Tak-Cu and the change was big towards more neutral sound.I even cut, put RCA jacks and used the original cable as an interconnect to tame a harsh sounding 90's CD player.It is that colored.
Regards,