Welcome. The answer to your question is the port that makes it work...sorry couldn't resist. Not sure I completely understand your question. Please add a little more detail and maybe even some pics. Also, don't forget to change the settings on your tv based on what you are using, antenna/cable.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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