Just received my ultra and now I'm at the age where connections just don't make sense anymore. I have an AV receiver set up Denon x2700h with a sony smart TV and E-ARC. What cables should I use as my output on my Ultra and where should my input cables go. On my mobile device using spotify I can see the Ultra but I get no sound; if I change to the Sony TV I get sound. Or do I now own a $400 Wiim clock. Help