Was under the dash on my 04 2500 yesterday. There are three connectors
grouped together on the left side of the steering column. One is next to the
parking brake release. Above it is the connector for the trailer brake
controller. Between them is another connector. Has a lot of small gauge
wires going to it and a plastic cover over it. Anyone know what it is? Any
"on line" wiring diagrams for an 04?