The 2000+ Bonneville OEM remotes can only be set-up using a Tech 2 scan tool. If you don't have access to one, you will require a trip to the dealer. Before you do this, you must confirm that your vehicle is equipped with the Remote Control Door Lock Receiver (RCDLR). This will be located under the rear shelf a short distance in front of the left speaker. It will have a connector that has four wires. Two will be purple, one will be black and one will be either orange or red. The connector on the end of the wiring will be blue. If you don't have this module, you will not be able to simply purchase remotes. There should be no reason you can't add it (if required), as long as you have the technical skill to do so.
StingRay Bike w/cards in the spokes, Weeeeeee!