Harman is teaming with Placecast to bring location-based radio advertisements to Harman's Aha car radio system. Harman advertising partners will be able to offer drivers digital coupons with Placecast's geofencing technology, which detects when a car is within a certain range of a business. The ad unit is being tested in select U.S. cities with ads from the Quizno's sandwich chain.

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VentureBeat, GigaOm

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