I bought this:
Phone Holder Mount for Hyundai... https://www.amazon.com/dp/B0B6H4YGTS?ref=ppx_pop_mob_ap_share
It comes with a magnetic plate that you stick to the back of your phone and it sticks on perfectly. Doesn't move, even with bumpy rides. I also threaded a wire through the hole in the fuse box panel to underneath the steering wheel that goes to plug in directly to the USB port so that I can get directly to Android Auto.