Good GPS for Class A motorhome

I use Map Quest on my phone. No extra cost. Down loaded the app. Between that and RVPARKY i had a great trip. Don't need a screen, it lets you know ahead of time what lane to be in and what turns to make. I did purchase a external speaker so i could hear it while laying on my dash. Drove over 6K last winter and did not go out of my way by 1/4 mile.