I have an older BOSE System (Lifestyle Model 5 Music Center). It has only RCA jack inputs. I am attempting to connect it to a new SMART TV that has only HDMI and one Optical connection. I tried an inexpensive converter that indicated it would convert the optical (digital) format to the RCA (analog) format, however it did not work (I only heard noise). In reaching out to Bose support, they gave me the impression that this is a lost cause and that the Bose unit is simply too old. Does anyone know if this is accurate?