CandeShop = wrong. It is possible, it's in one of the programming menus. You will need the installation manual, not the owners manual though. A couple clicks of the ignition and pushes of the valet button and you'll be set. XT-73 is the model # of the remote, do you happen to know the model of the alarm itself? If you don't have the programming manual let me know, i can most likely get one. I probably have on in the drawer even.