I have a older Bose AV48 with a LSPS speaker system(bose has dvd, radio built in)I purchased a LG Oled TV #OLEA6SCX ,This TV has 5 hdmi and an arc as well as a optical out input...I have tryed to use optical as well a Prozor 192Khz DAC digital to analog R/L audio convertor? I have true hooking it in all different inputs mainly the AUX of Bose system no luck.I was able to use a Panasonic blueray player which has RCA and works great,,,So how do i hook to this TV???? HELP!!!!!