Anyone know what this is under the dash?

Here’s a pic of the piece I’m asking about

View attachment 1716125715
LOL Comparing this pic-N-post the beginning of this thread I should have said, "Looks like a washing machine under your dash".
In response to another comment in this thread, Only 1 screw holds the earlier fuse box in its clip. Then lift the box up 1/2 inch or so , then toward the windshield 1/2 or so then gently down and tilt toward you. Be warned, The female terminals in the earlier fuse boxes were a bit loose on the male tangs. All the wires are captured in a square of plastic that doesn't let the wires move much but it is possible to move the fuse box enough to pull a wire off its connection inside the box. I don't know for sure but I would bet my quarter that the terminal fitment inside the fuse box wasn't improved one bit when they created the hinged box mount.