I bought a sticky suction cup mount for my phone and the video comes out nice and clear. This is the exact one I got:
https://www.amazon.ca/Universal-Dash...ne+mount&psc=1
Here is some video with overlay I took at the track with it last year:
[ame]https://www.youtube.com/watch?v=nzuA0WYRU8w[/ame]