After checking numerous wiring diagrams for both the chassis and the body of the 2018 Winnebago Forza 34T I was able to determine that the coach was built on a Freightliner chassis. There isn't a plug-in type of brake controller for this chassis though so a brake controller will have to be partially hardwired in.
While searching for the brake controller wiring on the chassis I was unable to find anything labeled as such. Unless Winnebago techs know of where wiring for a brake controller... view full answer...