's easy:
you've made the MM1 trigger this:
Key: wind value: on -
Key: door2trig value: on - Teh value should be seconds after the MultiManager is triggered, not on/off.
For example:
Targetname: mm1
Key door1 value 1
Key wind value 1.5
This will make the door open 1 second after the multimanager is triggered, and the wind start 1.5 seconds after it is triggered.
Targetname: mm2
Key door1 value 1
Key wind value 1.5
this is when the wind should shut off:
Since the wind is playing already, it cannot be turned on again, so when it is triggered, it will stop playing.