Chime rings when nothing seems wrong

I have a 93 Buick Regal and the chime has been ringing whenever I open the door. The chime is not as fast as the headlights or keys chime. The lights are all off as is the radio and the keys have been out of the ignition. I tried removing the fuse and placing it back in to see if it was just a wonky error, but no dice.

Any suggestions of what this might be?

Thanks.