You want to send that narrative to someone to help them drive the same route? That won't work because the traffic is different, so their speed will be too. And then there won't be a synchronisation between the narrative and where they are really at. Very confusing.
Ideally the other party ought to use another satnav device too, of course. But although you didn't say so, you intimated that they don't have one.
In the absence of a satnav device an old-fashioned paper map is the next best thing, imo. So in your place I would use e.g. Google Maps, on a PC or Mac!, to plan the route, and then send it over to the other party to print out.