And while you are in there................
I added an EMS to my 2022 E19 and mounted it vertically to the outboard dinette frame with a bit of reinforcement. It was a bit "tight" getting the EMS hooked up like that with the minimal slack in the orange main.
CAREFUL with EMS mounting screw length for either black tank top enclosure or the way I did it.
If you have a solar controller screwed to the top of your black tank enclosure, I had enough slack in the wires to move it to a vertical mounted position on the dinette seat inboard. Really opened up that space for storage.
First pic is after EMS install with the solar controller in the as delivered location. (Ignore the EMS display taped to the top of the black tank that pic - that was temp.)
** Mount the EMS display where you can see it while looking in the trailer door from outside - makes it easy when hooking up shore power or a gen to see the status **