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No. It is on 05 up. There is the connector under the dash that you can get a harness from the dealer to put a aftermarket controller. I have a 04 and did this. You splice the pigtail into the harness comming out of the controller and then plug it up under the dash. The connector is under the dash. Remove the rectangle cover that you remove to access the fuse box. The connector should be on the right side. It is a =n easy install probably about 15 minutes.
When I got my Prodigy controller I got the harness that plugs into the controller and then into the dash connector for free. No need to splice anything. The only thing that takes time is to mount the controller.