Install a progressive HW50C in a 3790RD

[Jsrore]

Hi All,

Just bought a 2016 Montana 3790RD would like to add the progressive HW50C ....where is the best place to install...I'm guessing it's in the main storage compartment behind the panels ...have not taken the panels off but I assume electrical is behind them
Really love this RV have had for 2 weeks and only issue we could find is toilet not holding water. Tried the olive oil trick kind of worked but i ordered a new seal only 13$ will install myself.
Went from a class A to 5th wheel it's been interesting change.
Any advice is appreciated

Thanks
Jeff