Boombox GTS update.

[Rugged Path]

I got an email last month from HD telling me the latest software version is available to download.
From reading the information it did not inform me what the cost is or what the update includes as a package.
I assume it is not just for the Sat Nav part of the infotainment system.

Has anyone done the update?

If so, what does it include and was there a large fee?

Thanks,

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