Saw this commentary today...

Opinion: Voice command in cars is overrated and useless | TopGear PH

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IMO, using voice control to adjust the volume (as per the article) doesn't make sense... There are controls mounted on the steering wheel...

But personally, I love using voice controls on my Android Auto...

Hey Google - directions to the office, Waze turns on
Hey Google - send a WhatsApp message to my wife/daughter
Hey Google - meetings for today or remind me to (do something) when I reach home