How can I disable the seatbelt chime?

I did this on the previous generation sonata by removing a little sliding part inside the seatbelt buckles. Tried to do the same here and I cannot even figure out how to open them? Looks like something is holding them together and I don't see any screws on the outside.

Basically I don't want to disable all the chimes completely. I just want the car to think that the seatbelts are always on. This noise drives me crazy.