Help With Siren Logic; SOLVED

[Beebop]

I am trying to make a siren go off at the home field when enemies approach and stop when they leave.
I have read the manual but don't understand the logic or apply the logic from the examples given as they concern triggering other events. 

I looked at an AAA Group I have that is triggered when a plane is detected and stop when it leaves but do not understand what to connect to the Start/Stop effect MUC's linked to the siren effect.  If I could figure that out I could use it and just delete the AAA and searchlight units. 

SYN_Haashashin's AAA with Siren Alarm link is 404.  I haven't been able to find another link or similar object.
Can anyone point me to a working MP siren group or post a pic of siren logic please?  I'm pretty sure I know how to adjust the detection areas in the command attack start/stop MCU's.

 

My objective is a siren that goes off ~30 seconds to AAA commencing fire to give the impression that their was no warning ahead of time and the AAA crews had to load and aim when the siren goes off.  I would also like to use it separate from AAA units to simulate a surprise attack where the AAA crews have to run to their stations and enemy planes can attack with impunity up to 2 minutes.

 

UPDATE:  A friend just sent me a working solo siren.  I can now figure out the logic so I can adjust to different scenarios.

Thanks for looking in anyway.

Edited April 4, 2020 by Beebop