Re: Wave your hand and hope....
OOO ERR ! But plus 1 for knobs!!!.
I HATE most modern car radios, millions of tiny buttons labelled in even tinier writing; the perfect way to crash and kill yourself!!
My old Clarion had it right, push, click and twirl a single know for all the most commonly used functions.
Of course current Clarions are useless, mine cant even switch to a traffic announcement without taking a few minutes* lie down to read the USB device and start playing it again, something the Chinese can manage in a £28 ICE unit (just a pity the sound output is shite).
*Yeah, I said MINUTES; it takes about 2 seconds per GB and my in-car USB device is a 128GB thumb drive. The cheap Chinese unit will start playing at once, and catalogue the file list in the background.