Installing the Furrion Vision S three camera setup

Blueespy

Greetings.  Our single Furrion rear camera needs replacing and we are considering installing the new Furrion Vision S three camera setup.  I know nucamp is offering this as an option now but I think we can do the replacement/install ourselves.  My problem is I think we may need to remove the black plastic "diaper" I'm sure nucamp doesn't call it that, so we can gain access to the rear brake lights.  Has anyone removed the diaper?