Yea I understand.Still needs a knob, IMO - my Pioneer has buttons like this and you have to take your eyes off the road to adjust the volume - can’t “feel” for it like you could with a knob. Any my old car doesn’t have steering wheel controls.
I definitely prefer a knob, but only a few head unit companies have knobs now.
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My JVC doesn’t have any knobs at all. The volume is part of the touch screen and I have no problem adjusting the volume without taking my eyes off he road. It’s not like the volume moves or in the middle, it’s on the left side and no issues. My radio even came with a remote. I don’t use it that often at all, but another option.
I ended up putting a JVC in my MR2, and it has large buttons on the left side. While I prefer a knob, the JVC seems to have the right placement for the volume buttons, as I also have no issues with the volume.