Ask the iTunes Guy: iPhone auto-plays music in cars, varying volume levels, and audiobook sorting

Not sure how iTunes works? Kirk McElhearn is here to point you in the right direction.

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Senior contributor Kirk McElhearn (@mcelhearn) writes about Macs, music and more on his blog Kirkville. He also runs Kirk's iTunes Forum, where users can discuss iTunes, iOS devices, music, and more. Kirk is the author of Take Control of iTunes 12: The FAQ.
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