Yin

My car of MDX 2007 has a problem of no actions for power windows, roof window, and power mirrors. This started without any hint. They are just simply no reactions when I tried to operate those buttons.
I check the relay ( beside the parking brake pedal, a box with fuses and relay. This one I take out is a black one located beside the blue relay).
The relay is taken out and applied with 12v DC. A click sound can be heard whenever DC is connected.
Also another two poles can also be checked and connected/disconnected when 12 DC is on or off. That means this relay is OK. I now suspect the problem could be the power from the battery lost.
So i go back to the battery side. Come to the fuse box beside the battery.
I attach a photo of the box layout on the lid of the box close to the battery. Mark a RED square. I do not know if it is the place power goes to the relay beside the parking brake pedal.
The second photo is a photo of the box itself. The photo shows the real location I want to check. Is it the location I need to check? How to remove the "tray"? Is it the copper screw no the end of the TRAY?

Fuse Box Lid-Layout of Fuses/Relay

Fuse Box