dimmer switch

In that case you can download the wire diagram from here.
Wiring – MyMopar
I have this diagram but apparently when I blew it up I lost the bottom part of it just above the dimmer switch. Didn't notice till now. Thanks.
Another question. The dome light and the door light actuators have 2 wires . One hot, the other ground . Is the ground really nesessary ? Doesn't the mounting point act as a ground?