Ok to give you some info. I have a manufactured home. I am in/have been in the process of replacing the light fixtures with ceiling fans. Here's my question/ problem. One of my bedrooms has a ceiling fan already but whoever installed it just screwed it to the ceiling and not a stud or joist. I have got the expandable brackets that spread out and supports the weight of the ceiling fan. The bracket thing comes with a metal eletrical box and here in lies my problem. When removing the ceiling fan, my father in law said that the ceiling fan was in a plastic box that had other electrical work running through it. I think its probably the wall outlets etc. My problem.....ok if it has the wires running through are from the wall outlets etc. is what do I do with those wires when I'm using the light wires connecting to the ceiling fan when I use the metal box attached to the expandable bracket? I was not there when they check it out. But I am going to kill the power and look at it myself. But from what I have told you.....any pointers? ideas? on how I can procede.