Right, people don’t want to manually patch their speakers, but people probably don’t want to throw them out after a few years either.

In any case, presumably in this proposed scenario secondary service industries would pop up to do this for them/offer ongoing alternatives. Much like computer maintenance and repair.

Open source doesn't need to be more complicated. There are several open source projects with majority of users with only consumer mindset. VLC comes to mind.

The original producers of the software could be unhelpful even if they comply though. That's another story.

Or it could operate like every other speaker produced in the history of earth that doesn't receive over the air updates: just fine.