1984 Mustang GT - What Module is this?

I found this unplugged when I was replacing my blower motor. It is located above the glovebox behind the passenger side of the dash. I do not know if I should plug it back in or it was unplugged for a reason. Anyone know what is does? Thanks,

Attachment 83943

Figured it out - Seat belt/headlight/door buzzer. Probably disconnect by a previous owner since it can be annoying.