Need source power ( constant and ign ) inputs to sw. Diagram and any fuses. Also locations.

Need or want?  

year, make, and model for your your RV?

have you gone to REVRVParts.com and entered your VIN in the search window at the top of the screen?  This narrows the parts list to what was used to build your RV.  (Only available on recent [10yrs or so] models.