Horseracing Exchange

I have a 2012 Jeep Grand Cherokee. I have made the mistake of changing the ac evaporator by myself. (hahah)

well, i got the entire dash off and am at the heater core, but dont know how to remove this box!
i have looked at every youtube video and they do not show where the screws are located

please tell me how to remove the heater core and where the screws are so i can replace this ac-evaporator.

heres a couple of photos of where i am at.

took me several hours to get to this point.

thanks all!