Our latest mod was to add a bluetooth audio transmitter to our outside TV to allow us to use the outside speakers. We got a Mee Bluetooth Audio Transmitter from Best Buy. It works with both the headphone jack (3.5 mm) and the optical out port on the existing Seiki TV. There is a slight delay but at least we can hear the sound when watching outside now. (Especially when tailgating when there is lots of ambient sound!)
http://www.meeaudio.com/Connect/
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