I just bought a 2006 cobalt ls coupe, it does not have power windows or locks. The fob has buttons for door lock/unlock, trunk release and remote start. The only button that works is the remote start, when I press door lock or unlock or trunk release the parking lights go on but the locks do not do anything. Should the doors or trunk work with the fob. There was no fuse in the passenger compartment fuse box for the door locks when I bought the car, I put in a 20 amp fuse and it still does not work. Thanks