Un-pin the tv, push the tv on the right side a little. Look up in the top right corner of the cabinet. You'll see the cable connection point as well.
That is where exactly where mine is located on my 2013 32RL. Inside upper corner of the TV cabinet (right side) when the TV is unpinned and pushed towards the outside of the trailer.
Don
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Donjamin
Fullerton, CA
2015 Ford F-250 SD 4X4
2013 Sunset Trail 32RL 5th Wheel (no longer own)
may be white or black plate, but it's the LITTLE bitty button to the right of the 'hole' and connector... that little dot in the pic below - it's a toggle push - push and I can never remember if IN is on or OUT is on I use it so rarely...