Thanks for the replies - did some more investigation.
Looks like 12 (maybe 14) gauge wires - black, green, white. It enters the rv behind the black tank and in front of the rear left wheel well. No voltage even when I turn on the tank heaters. But the tank heaters don't seem to be warm to the touch ( are they supposed to be? ).
DocMike - my wire bundle into the second storage bay looks like yours, but I will test all the TV functions.
Guess I will send to the photo to Thor and see what they say.
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