Since day one, my alarm has been giving me trouble. About 50% of the time, if I unlock the door with my key, the alarm does not turn off. So when I open the door, the alarm sounds. It's not a major problem, as when I unlock with the remote, everything is ok. Still, this probably needs to be fixed eventually. Has anybody had this problem? If so, is it big money or something simple like a fuse, relay, etc.? Thanks.