So the IP driver that has worked for years, doesn't seem to control most of the input switching on Zone 2 of this model.Tried contacting Marantz and was told that they don't have a code sheet anymore (lies). Waiting to hear back from our rep to see if he can get the info.Anyone know if these codes were changed or is there some glitch in this model?

I would be tempted to try Denon codes.

good thought, but didn't work.

it's weird. on the web gui, when i manually select the source from the face of the marantz, it just says the name of the input is Source instead of showing CBL/SAT.  i'm thinking this thing has a firmware glitch.

the "source" command sets it to follow (mirror) the main zone, the avr will show Source as input. HDMI audio de-embedding to zone 2 works in this mode. The codes for the cinemas are the same as the codes for the the x015 models. I do have a copy of the protocol for those if you'd like it.

could you check the sheet to see if they match up to what i'm using?

The only code that I've needed that actually works, is the CD Input
Z2CD

The following codes for, SAT/CBL, Tuner, and Bluetooth, that I need for this particular job, don't work.

Z2SAT/CBL
Z2TUNER
Z2BT

Actually, sending Z2SOURCE works, which is fine, because my Zone 2 output is used to feed headphones, and Zone 2 will always match what's going on in Zone 1 with this configuration.