I have mine suction cupped to windshield just to right of mirror on passenger side. Ran power cord from the fuse box up a-pillar and across header (behind the trim of course). Due to rake of the windshield, it's pretty well tucked under header and suction cups are in the tint zone. If I don't take down when parked w/ top down, I fold down passenger side visor which pretty well covers it. My concealed display is velcro'd to dash hidden behind my state insp & emissions stickers (driver's side corner of windshield. Not the most "hidden" but pretty inconspicuous... all depends on interior colors too though. Top up, can't see either... top down, concealed display can be visible but certainly doesn't jump out at you. It's nicely in line of sight while driving yet inconspicuous too other motorists, etc.
Others have taken the concealed display and hidden it in the rear view mirror or 'batwing'.
Good luck
