2013 Sat Nav shut down issue?

[Dave newport]

Hi,
Has anyone experienced an issue with the nav IV on a 2013 RT?


I have noticed that when turning the bike off the accessory circuit should shut down after a couple of minutes.
But if the sat nav is in the mount and on, I holds the circuit on for ages, sometimes 30 minutes or more.
If I switch the nav off, the bike suits down no problem every time, but if I leave sat nav on so it should power down when the accessory circuit shuts down about 50% of the time it holds the circuit live.
Is this been mentioned before and is there some magic to remedy it?


Thanks
Dave