If your Jeep is equipped with a 4-Way (flat)
connector for trailer lights, and your setup does NOT include an
electric trailer brake package, this chart shows the function of the
four wires you will find on the connector.
Click here for diagram.
If you have an electric brake setup, you will
have a round connector with up
to seven pins.
Click here (link goes off this Web site) for connection diagrams and
wire color charts.