I use a ram mount on my px for the gps and phone, have been using there mounts for years on all my vehicles and never had any problems. They are not cheap but worth every penny as you don't want your phone to fall off. They do many different mounting options.
I use a couple of mounts one is a suction mount that I have inside the leg shields above the toolbox and I have one that connect to the brake fluid reservoir. Sorry dont know the reference numbers. If you Google ram mount there are lots of different mounting options available