My stepfather just purchased an '05 3500 4-door 6. 0 liter Lariet. I thought yall might be interested to hear what they are offering as some opitions in the cab. It came from the factory with a boost gauge in the gauge cluster, 4 aux. toggle swithes mtd. in the dash, and a factory installed tlr. brake controller. The switches and controller are mounted to the right of the steering wheel. I thought this was pretty cool, eventhough it was a ford