Upgrading MFD to C95

[saustop]

Thanks so much Chuck! You are most helpful.

So I have two more questions:

1. If I power the Seatalk -Seatalkng convertor directly, does it always remain on? and if so, will the RS125 and ST60 Tridata remain on when not in use? Will this drain this battery?
Is there some way I can switch off the convertor and GPS? I think the ST60 Tridata has a on/off button.

2.i've read that I have to update the firmware on the convertor. To do this I have to connect the convertor to my MFD via seatalkng and boot the MFD off of the downloaded software. In this process, does the convertor require it's own power connection?

Also, will the MFD firmware be updated during the same process?

3. Does the ST60 Tridata device provide any information to the MFD via the Seatalk - Seatalkng convertor: such as depth, speed etc?
If not, does it make sense to connect the ST60 via seatalk or just leave as a standalone device?

Thanks,
Phil...