Hi,
I actually worked with someone at iRule a few years back to get all the codes made for volumes, mutes, etc. pm me you email address and I would be happy to share. It works perfectly with both Irule and with Simple Controls.

I'm back into looking at this as I have my Alexa controlling this unit now. The one piece I am looking for help on is how to get the sony to report the volume status back to the remote (IE: show the volume level for each zone). Any help would be great.

gregwells67 (at) comcast (dot) net