Set the initial volume to 0.0 (full volume) if ignore_volume_control is selected. Add some code to explore remote_control. Still not even close to working.

player.c

@@ -2096,6 +2096,8 @@ void *player_thread_func(void *arg) {
   pthread_setcancelstate(oldState, NULL);
 
   double initial_volume = config.airplay_volume; // default
+  if (config.ignore_volume_control != 0)
+    initial_volume = 0.0; // set the default to full volume if ignore volume control is on
   if (conn->initial_airplay_volume_set)          // if we have been given an initial volume
     initial_volume = conn->initial_airplay_volume;
   // set the default volume to whatever it was before, as stored in the config airplay_volume