Accessing shower plumbing in a 2019 16' Sport

[acmebrett]

What is the best method for accessing shower plumbing, hot and cold water lines and drain trap, in the 16" Sport?

[Shiny16]

Did you look under the bed by the bathroom wall? Lift the mattress and there should be access.
I just checked and there is on my 2020 Caravel.

Hope that can lead you in the right direction. I would think the drain trap would have to accessed from underneath.