I am copying my original post:
Thank you Mike for your work. I was very excited to try this out. I have an Alarm Pro and all of my contact sensors work. However I am having difficulty getting the piezo buzzer to work as a switch or my siren to sound. I can activate them using the 'accessories' in home bridge and change their states from 'false' to 'true' however I do not get any noise. Also the HomeKit switches for the alarm or buzzer do not seem to change the accessory state in Homebridge per the log. Any ideas?