[raceing86]

Originally Posted by ric124

tested it today.

I called someone and
ringing came through regular speakers
voice came through regular speakers
had person call me back and ringer came through regular speakers

I stuck my head by the pedals and it all sounded like it came from the HK speakers and nothing was coming from speaker by pedals.

So when will this speaker turn on?

SOS?

I think you are right, I believe it is for the SOS. It would make since that it has its own speaker (maybe backup speaker) in case for some reason you were in a bad enough crash that it messed up your regular audio system.