any wiring gurus can help me? [View all]

I live in an apartment with this intercom system:

https://www.amazon.com/JERON-SYS-Z-2001-LISTEN-STATION/dp/B00788I4GE

See the photos for the wiring.......

So my problem is, whoever designed this intercom, maybe it was meant for a 50000 square foot warehouse or people that are almost deaf..... but the buzzer is TERRIFYINGLY loud. Every time someone hits it my cat runs under the bed and i'm honestly worried i'm going to have a heart attack someday.

There is no volume control so my question is.........

Is there a part I can wire in-line with the buzzer to act as a volume control? Similar to a dimmer switch on a light? I believe this is low voltage wiring so I' thinking a "dimmer" would vary the voltage and reduce the volume of the buzzer?

OR

Can I buy a different buzzer/chime and land the wires on that? Would 24V be the correct voltage for such a device?

If so, what is an effective way to land the wires? These look soldered, I don't have a soldering iron. ?Is there some cheap conductive adhesive of some sort i can just stick them on there with?