Dash Reinstall Questions - 2003 GT

[5.0 Nostalgia]

Just finishing hooking up all the harness connections after reinstalling the dash on my 2003 GT. Need some help identifying where the two boxes circled in the picture go. The larger one slides onto the dash frame and the smaller one screws on. I remember taking them both off when the dash was already pulled away and now I can't remember where they go.

Thanks for your help.