Starting a discussion to get some help trying to figure out this damned secret ending for the map. I've tried a few different things, like doing different side quests to see if maybe the number is related to the amount of side quests you do, but nope.

I also tried doing the Simon Says six times, but that also didn't work, so I don't know what else it could be.

All I know is it involves a radio to some degree. Anyone else have any thoughts or leads?