I have a cheap LC without suspension control, so my bionic fits nicely in the change cup.
But really - Leave it on your belt clip or in your pocket. It is a distraction to have that thing in view. I have a Parrot system in two trucks and Pioneer's bluetooth radio module add on in another that speak the GPS directions to you through the stereo. Much safer than looking at a map while driving. So I program it and put it away.
Remember 20 years ago when we used paper maps? You had a passenger navigator tell you where to turn, or if you were alone, you planned your trip before you left or pulled over to read the map. Driving distractions are the new DUI.