I had problems with my alarm so I took it to chrysler, turns out I had a wire cut and they fixed it after ripping my whole car apart. Anyway when I locked the doors the yellow lights used to flash twice, now they hold for about three seconds, my unlock flash is the same. Point of the story I think chrysler can mess with the settings as far as lights and sound goes, but sound forsure has to be just that, a replacement of the alarm to the new 06 alarm horn.