Okay, my bad if I missed some things, first time I've done anything other than the loco ID. So, here's update:
Verified CV31 = 16, 32 = 0, as instructions say, then found and changed the function output for Aux7 (see photo), and wrote changes. I then did see that CV 16.0.323 you mentioned changed from "1" to "31" which is what the instructions say it should be, all seems good. Write changes and save.
Still no sign the stay alive is working, I let it sit on the track with just sound playing for 2 minutes and as soon as I lifted it off the tracks it quit. Set it back down, waited 4 minutes and had it do a loop of the track just to see if that did anything and once again as soon as I lifted it off the sound quit and wheels stopped...
Do I need to change any of the sliders below Aux 7?