I know this is probably an easy question . . . . when I took a 2018 Boxster out for a test drive, there was a "screen" in the center of the car at eye-view height. I asked him what it was for and he said since the car we were in didn't have NAVIGATION, the screen didn't / doesn't do anything. That seemed odd to have a blank screen that does nothing. Doesn't the PCM use the screen? Dumb question number 2: Since the PCM is standard equipment (and I assume that it does use the screen), why do you need the 7UG Navigation module OR the IU1 Connect? From what I read, you can't have both 7UG Navigation and IU1 Connect on the same vehicle. But, I'm not sure why I need Navigation or Connect. Thanks for your help on the basic questions that all of you probably already know the answers to.