How I got Home Assistant to work with the Monoprice 6-Zone Amplifier

But getting the Unknown status

I followed the instructions here and it worked. Mostly. I have two each of every entity and two monoprice 6 zone amps. not sure why.

Bigger issue is that I don’t know how to control the source via HA. In other words, i got the keypad functioning, can turn it on, off, set bass, treble, volume. But how do I change the input source?

ok. so again, I followed the directions here. Got rid of the duplicate monoprice 6 zone amp (not sure how that happened) and it works super easy. I’m very happy. Im using an USB to serial connection from the HA to the monoprice.