Like many, I was looking for a good cell phone holder that would install cleanly and conveniently in my Prius Gen 3. I realized that the place I wanted my phone to sit was right under the built-in display. Since I find Google Maps a thousand times more useful than the Prius built-in navigation - positioning my phone here makes it completely visible and easy to control. My Samsung Galaxy S* is just the right size to sit right under the main display and still give access to all the buttons around the lower display. Then it dawned on my that I did NOT really need the info in that lower display very often. I could afford to position my phone over it most of the time. And THEN, I realized that a clear plastic phone case could easily be installed so I could easily see the lower display right through the clear plastic - whenever my phone was NOT sitting there. Since my phone is ALREADY in a Spigen thin rubber phone case, it took a bit of research to find a phone case that would fit my Samsung Galaxy S8 phone with that case. I did find one that was a nice snug fit - then used a Dremel tool to carefully grind away enough of the case that my phone would stay secure but would easily pop into my hand when I wanted it. Works like a charm! With the phone in place I can't see these controls in lower display but I have access to all the controls: inside temperature - That's OK, if I'm chilly or too warm I can change the temperature at the dash or on my steering wheel. Outside Temp and Fan speed - again, I have a central nervous system. Don't need to know exact numbers/ Vent mode is somewhat useful info. If I really need the info I can move my phone. If I don't want to move my phone, I can increase fan speed and toggle through the modes and just feel where the breeze is coming from.