Download OsmAnd. You can get the world map and five states for free or as many as you want for a small fee. This is a GPS program based on Open Streels. Next go into Map my ride and get your route converted to a Gpx file. Save it to a location on your computer where you can find it. Next, email to yourself and open on your phone. The pop up will ask you what app to use this file and one of your choices will be OsmAnd. This will give you voice activated turn by turn guidance.