I use this one. I put the phone up pretty high in the cradle and it holds snug. It mounts in the CD slot so depending on what year 1er you have this can be higher or lower (above the a/c controls like my 2011, or below it).
Koomus Pro CD Slot Car Mount Holder Cradle for All Smartphones - Black
https://www.amazon.com/dp/B010NYXETQ..._ZgIdDb4GHFAGD