However, I've had to rename Gizmo's zones several times now because they get erased when you update the software in the stereo itself. Redoing the names with a big Garmin touch keypad (on the 741SX in this collage) made me smile, especially since it was entirely free. I demonstrated that naming feature when I first installed the IP700 in 2012, but in fact, I left 'Fly Brjdge' mispelled for over a year because editing labels with the stereo's limited interface is so tedious.

Here's an example of a deeper menu - note the huge and sometimes informative touch buttons - and also the user's ability to name speaker zones so it's easier for you or a guest to know what you're doing with the volume GPSMap 7212 controls.