Hi, Rusty!
Thank you for the cycling clip!
Sat Nav isn't really intrusive....and you can usually "choose" a voice to direct you, so it isn't irritating to have a tone that you dislike.
And you are only given instructions when there is a change of route.....
Also, should you elect to disregard the current instruction and go your own way, the Sat Nav picks up on this, and can carry on directing you from where you then are.
It is certainly a useful device if you do not know where you are going, and do not have sufficient map coverage.
But I have been known to wind down my window, and still ask for directions, even in this day and age!
It is time for the dog to go out into the garden one last time ...and then I am away to my bed!