Hi - I am at a loss on how to connect the above products.
My Epson LS800 UST has 2 HMDI ports. HDMI1 and HDMI2 (ARC) (It also has a HDMI 3 for Gaming, but that's not part of this concern.
My Denon AVR - X2800 as the usual HDMI port plus one HDMI (ARC) port.
The SONOS Soundbar ARC has a HDMI ARC port.
The Cable Box has one HDMI1 port.

I am currently configuring connections as follows:

Epson LS800 HDMI2 (ARC) to the Denon HDMI (Arc)
Epson LS800 HDMI1 to the cable box (HDMI1)

So.. Where do I connect the SONOS HDMI Arc port?

(I have previously connected the SONOS to the EpsonLS800 UST HDMI (Arc) port and that works fine (for sound from Sonos). But then I have an available HDMI (ARC) port on the Denon and no available HDMI (ARC) port on the EPSON (since SONOS is connected there) If I then connect the EPSON HDMI 1 port to the Denon HDM1 (cable/sat) port where do I connect the HDMI1 port from the cable Box?