UPDATE: Finally got around to opening the A/V cabinet, as well as the panel that the mystery switch is on.
With both items open at the same time, I was able to trace the switch to a Wireless Cellphone Amplifier - which was hidden in the A/V cabinet.
Obviously the previous owner had this added... would have taken 2 seconds to label the switch when installed.
Anywho... it's labelled now and I'm looking forward to seeing if the booster actually gives me better signal once I get to an area that has low signal.
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Tony
2008 Country Coach Allure (Crane Prairie) 45' / ISM500
2016 Lincoln MKX Black Label
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