I have owned several car stereos over the years (courtesy of my neighborhood grabby footpads, who steal them from me at a rate of about one a year). Never have I found one that is ergonomically satisfying. They all seem to require wading through menus, fumbling around for buttons designed to blend in with the faceplate, and taking valuable face time away from the road in order to see the ultra hi-tech display.
Now, a slight digression. I play keyboards for a living. Preferably real piano, organ, Rhodes, etc, but realistically I spend most of my time on synths.
Back in the 70s, when synthesizers first became mass available, they were festooned with knobs and sliders, one for each synthesis parameter. Altering your sound in real time was simply a matter of grabbing the right knob.
But in the 80s, synth manufacturers realized that, with the advent of digital technology and LCD screens, they could make keyboards with just one slider and some buttons; to adjust a parameter, one would have to navigate a menu. Users of cell phones (and indeed car stereos) can relate, I’m sure. This drove down costs, to be sure, but dropped a wet blanket on intuitive and/or real time synth programming.
Thankfully, recently synth manufacturers have realized that knobs and sliders are good things after all, and most modern keyboards have several of them–maybe not one per parameter, but enough to improve ergonomics significantly.
I am still waiting for car stereo manufacturers to have the same epiphany.
Hey, guys! You might want to imagine that on some unique day, some unique person might want to, oh, I dunno, OPERATE THE STEREO WHILE THEY ARE DRIVING!
That is all.