Good site for finding those hidden things? Interactive parts catalog https://catalog.winnebagoind.com/menu/Parts.htm
But it looks like the controller is mounted on the bottom of the RV floor, so looking up to find in driver's side compartment just back of front wheel?
You may have to stick your head in compartment and then look toward the outside to spot it?
It's like an Easter egg hunt and we have to look under all the bushes, so wish you luck on the search!
Found them this afternoon.
The drivers side controller was on the ceiling of the second compartment from the front (1st one after the wheel)
The pass side controller was on the upper wall of the 3rd compartment from the front (2nd one after the wheel)