Dealers sometimes send out a technician out for a half day service call only to find the issue is an unplugged HDMI cord. The cost of the work is normally on the dealer's dime since this kind of stuff comes with a service contract.
Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
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