2006 civic si OEM ground when armed wire?

There isn't one.  What you can do is this.  Take 2 relays, and wire up like this.

Relay 1

85 - Ground

Relay 2

What will happen is with the ignition off, when you lock the car it will trigger relay 2 which will pulse your window controller and it will roll up.  If the ignition is on and you lock the door, the window will not activate.

I knew I forgot to mention something.  If you find with that setup the windows aren't rolling up all then way, then what you can do is replace relay #2 with a DEI pluse timer relay p/n 528t. Wire that up like so.

Red - Constant

As for the window rolldown with the stock remote, I'll have to get back to you, I know I have a diagram at work on how to do it, I just have to find it.  The only reason I suggest using a 528t instead of a capacitor is because if you need to extend the trigger for any length of time the cap you'll need will start to get rediculouly large.  to put it in prospective a 1 farad cap will keep a standard bosch relay activated for between 15 and 20 seconds.

is there a module that sends a timed ground if it recieves two ground pules one after another.  (or maybe use a combination of a pulse timer and a relay)

this way i could push the unlock button twice and that would make the windows go down.

Ok I might have figured out how to do the roll down with the stock remote.   First make sure that when you hit the unlock button on the remote 3 times, the door locks try to unlock 3 times.  If they do, then you can use a pac tr-7.  You'll have to program the tr-7 to option 15.  The pulse count will have to be 3, and the timer set to 6 seconds.  Then you'll have to wire it up as follows.

Black -  Ground

The brown, blue, and orange wires aren't needed so you can tape them up.  Programming the tr7 can be a bit of a hassle though.  The only other problem you'll run into is you won't be able to just vent the windows with this setup.  Once you hit the unlock button 3 times the windows will start to roll down and should stop at the end of travel.  The unlock motor wire is yellow.  Same place as the lock motor.