Hi and welcome to the forum!
The wiring diagrams do have the coax runs (and speaker wiring, etc.) shown - extremely handy at times for those of us that like to tinker.
It has been a while since I have looked over the diagrams - I'm not sure if they show the wall framework or not. If you happen to look at your unit when it is cold (and humid) outside and warm inside the unit, you can easily see the outline where the insulation is not as good, i.e., a structural member is present due to condensation on the outside wall.
I know many have called Winnebago owner relations with those kinds of questions and the techs do a very good job of coming up with good answers.
