I don't own an Endeavor, so what I say only come from the HR online manual for a 2013 Endeavor, downloadable at this link
. They don't have manuals on line for newer-model year Endeavors.
This information may not match your coach. However, one can usually assume that models are similar year to year.
The attached pages from the 2013 manual show the Front Distribution Panel, accessible (as others have indicated) by an door on the outside of the coach, located immediately under the driver's window. If you don't have a door there, or what's behind the door doesn't look at it does in the attached, then you'd be best off calling Monaco and asking them where the fuse panel is.
I'd normally spend a bit more time and track down the actual fuse for the shades as shown in the manual pages, but I'm short on time to do so.