A trick that I have found with the marine Furuno products is that they remember the state that they were in the last time power was removed from them.
In the unit is off when you remove the AUX power than when the AUX power is turned back on the unit will remain off.
If the unit was on when the AUX power was turned off then the unit will be automatically turn on when power AUX is turned back on
This feature keeps the unit alive if power is disrupted under way so that the helmsmen doesn't have to keep turning it back on during busy times.
