Doug - I have seen chassis and house wiring diagrams from Monaco, Country Coach, Winnebego, and Fortravel. They are all VERY good. Some (maybe all) even show unused wires in cable runs. I suspect they are also "proprietary" but recognize that they are needed by the owner and therefore provide them. As has been discussed many times WRV needs to go a very long way to have adequate manuals/documentation for the owners. I will thoroughly inspect all documentation prior to buying my next coach. I don't care how much I like the coach, without documentation that meets, what I view as minimum standards (comparable to Country Coach documentation), I will not purchase it. That being said, I have found that, although WRV gives the lame excuse of their diagrams being proprietary, with enough begging they will provide diagrams that are readable. It is true, we shouldn't have to beg for them and hopefully they will eventually see the light. Don't give up.
'19 Renegade Verona VSB
'05 Jeep Liberty