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Unfortunately, this setup would have a sync issue with your main speakers. The JBL PartyBox 300 would be best to use as a stand-alone speaker system.
Sorry, there was a problem. Please try again later.Cars are bluetooth in not bluetooth out so to speak. While Bluetooth is a two way technology car radios specifically don't utilize any output features for obvious reasons (heapdhones/headsets while driving?!?!?)
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