I have an Amazon fire box? I think that's what it's called, diamond shaped.
I have it hooked to the HDMI on the tv but I have a Sony home theater hooked to the xfinity box xg2v2-p. With audio cables. Everything thru the box goes the the Sony so I have nice souround sound.
How do I get the audio from the tv to run thru the xfinity box? It comes thru the lousy tv speakers. I see an HDMI "in" port on the xfinity box but have read that it doesn't work. On the sony I only have HDMI out on the sony.