Just catching up on this thread, believe it or not I was using an old Amazon Fire Tablet and found instructions on the net in how I can get Google Playstore installed and then was able to install the Teslogic app. I know have a permanent dash board with this device behind the steering wheel.Thanks, I know you can use your phone. I want to have a permanent display and my worry is that, even keeping an old phone will invite break-ins to my car, so wanted something that looks more like a screen than the phone and @Binlo just posted something that looks more like a mini display and was curious what it was.