Harman Falls After Apple’s Siri Eyes Car Market

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Harman International Industries Inc., a maker of car infotainment systems, fell the most over two days this year after Apple Inc. said it’s working with automakers on a Siri voice-command button for steering wheels.

The shares slid 8.9 percent for their biggest two-day decline since December. Today, they dropped 3.9 percent to $36.53 at the close in New York.