I can't find the answer on the website.

I have a ClearNav XC vario installed in my (for sale) LAK-17a. I'm
thinking of keeping it (for a price reduction, of course) and installing
it in my Stemme. The question is: Does the CNvXC come with engine
noise logging? If not, is it an option to upgrade? If so, does it need
to be returned to the factory for the upgrade?
--
Dan, 5J