I guess my point is that my thermo's are in locations in which the motion is triggered as you enter/exit a room and am trying to take advantage of the motion triggered
inside of them.
I was just hoping there was a way to do this instead of having to install motions at pretty much the same location.
One, you can adjust the motion's sensitivity via the menus. Two, while I haven't done this (I have no need to), I don't see why you couldn't hack it. If you open the stat, you'll clearly see the pins (easily soldered to) on the PCB, directly behind the PIR. You would either need to follow the traces or remotely power the stat with a 24V AC PS and trip it to determine the pin out. Once done, you should be able to interface the PIR to your HA system. Depending on the results, you may have to introduce a transistor or relay into the mix but, it all seems quite doable.
Now that I think about it, I may have to try this (with all my spare time...

)