We don't get the best drawings on the older RV. After 2010, we get interactive, whereas before we get simple line drawings which we can't turn to look at things as well.
But we do the best with what we have?
This set of drawings is the parts catalog and shows the parts which make up that cabinet and refers to a TV hold down bracket??
https://www.winnebago.com/Files/File...00/0wf430v.pdf
Down about page 34, there is a drawing with parts list. Maybe knowing where to look and reading the parts description will lead to finding how to get inside? Item 3 looks like a good one to know about!
Another thought that might help is looking at how the cab area is often built so lightweight and easy to take panels off without damage?
I've found some to have the top only be an oversized flap of fiberboard, etc. that laid down on the other parts. Sometimes Velcro is used? Maybe a couple staples?
When searching for coax in those compartments, I found taking the panels out and then staple them back with a heavy duty staple gun was easier than working without good access?