I'm still having a few problems with this. I may not have something set up right or there could be a bug.

(1) When a call comes through when my Empeg is playing, RestoreSrc sends my Empeg to sleep when it ends.

EDIT: below changed to what I actually wanted to say:

(2) Also, SaveAux gets eaten by something when the Empeg is woken from sleep by it with extmute_off=SaveAux. If I use the innocuous button trick extmute_off=SelectMode,SaveAux, will SaveAux correctly record the power state when that line is invoked?