I use my phone for satnav. I used to have a holder with a sucker stuck to the passenger side of the transmission tunnel, so that my phone was down by the gearknob, but I found that was too far away from my line of sight. Now I have a tiny mount with a sticky pad on one side, stuck near the top of my carbon dash, and a magnet on the other side for my phone, with a small metal disc stuck to the back of the phone. There are many similar-looking mounts; I bought that one because it was all-black and all-metal. It has worked perfectly so far. In the photo, my shift lights also use the same kind of mount, so you can see it from a different angle. In this case, I have the magnet on the car side. This holds the lights up high, close to my line of sight, and it easily pulls away from the car when I meed to fit the tonneau.