"Our dealer repeatedly has told us that Keystone depends on their dealers to be the final QC inspection point. If the dealer doesn't do that job effectively then it ends up in our lap.".... You know it seems that way but if true it is not good business practice. The dealers do not like to do warranty repairs as to them it is a money losing proposition. So you would have a manufacturer causing a dealer to lose money and since all Brands have problems and most dealers handle more than one brand it would be bad news for the dealers. Something does not compute...
After warranty the dealers would be happy to do the work at their rate hence the justification, in our case for the Extended warranty.
True about the workers and wiring. We have been to the plant many times as many of us have and we can see how they do it. Most of the wiring is routed in the roof and down the walls but these are RV's not homes and how in the world do you get into a wall to find the wiring. You have to remove the front and rear cap to get to the marker light wiring. IMO the wiring digram, if there was one, would do little good as you still would not be able to get to it.
we also know for a fact that Keystone may make a change right on the assembly line so the unit that was built in front of yours may be different that yours.. The Rv industry is different than any other and I have no idea what to compare it with.
As I have said many times if they were to build a Montana the way I think it should be built it would weigh @ 30,000lbs and cost 200.000 $$$ and we would not be on the road...