Thanks.  I'm not positive I understand the electronics involved, but I was hoping for a way to "listen" for the Kidde interconnect RF signal in my home wiring like (I believe) the Insteon Smoke Bridge is doing for the FirstAlert alarms.  I bought the Smoke Bridge naively assuming it would work for any interconnected alarms, and am now stuck looking for a cheap way out of my screw up.  If I understand this correctly, has anyone tried to hack the Insteon Smoke Bridge to make it work for the Kidde alarms?  Don't worry, I have no intention to mess with any of the functionality of the Kidde alarms - I only want to turn on my lights and send a text message from my ISY when an alarm sounds. 
  
Thanks Again, 
Mike