Okay, looks like either nobody else had this trouble, or if they did, they took it to a dealer to have it installed. Anyway, I found the plug. It was no where near where it was supposed to be. Below is a photo sent to me by Winnebago showing the wire drop being located behind the footrest to the left of the steering column.
Here is a photo of that same location on my Journey, no wire drop.
After reading some posts on a Good Sam forum regarding Freightliner trailer brake wire drops, I decided to look where the Fleetwood owners had found theirs, behind the instrument panel. It still was not obvious and took much searching, but I found it. Here are photos of where it was.
Here is a close up of the plug.
To anyone else who may have this situation, I hope this helps.
Alan