i have a 2000 keystone cabana 1701. entry door is close to the end of the camper. just inside on the left wall when you enter there are 2 wires comming out of a hole in the wall where a switch use to be. the previous owner took a conector and joined the two wires together. i was wondering what this missing switch was for? and why the wires were joined together? any input would be great!