The passive outputs on Nuvo stuff stays live when the zone off.
maybe... speaker to line level adapters with signal sensing amps.
See if you can find some sort of power status hack in the keypad wiring? Tap into that to somehow trigger the apms.
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.
