This should be your Wiring for that portion of the RV.
https://www.winnebago.com/Files/File...ire_180921.pdf
Note that there is a list at top left of first sheet with info on which sheets apply to the 27N! Try to ignore those sheets which apply to other models of the Vista! More than enough confusion when looking at the cORRECT sheets!!

I think part of what you will need will be on sheets 6 and 7.
a part to reading these drawings is to be aware of which options you have on your specific RV and you will have to sort that as we don't know much about how many Tv and locations. etc to look for info.
On sheet 6, there is a list of potential options to consider which you may have. That list relates back to the "bubbles" on the drawing where connections for the various options may change things.
Click to get a better view!
[ATTACH]
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!