As one example, the smartphone or tablet may control and output audio data to interface 800, which is translated and provided to factory audio amplifier 740, thereby allowing the smartphone or tablet to be used as the vehicles audio controller in {HEAD ~ lieu} of {TAIL ~ a separate aftermarket stereo} 
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As one example , the smartphone or tablet may control and output audio data to interface 800 , which is translated and provided to factory audio amplifier 740 , thereby allowing the smartphone or tablet to be used as the vehicles audio controller in { HEAD ~ lieu } of { TAIL ~ a separate aftermarket stereo }
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