Viper 791xv 01 Accord Defroster Output

I just installed a viper 791xv on my 2001 honda accord ex. Everything works great so far. I want to use the remote start output to engage the defroster and rear window defogger when the vehicle is remote started. This is the timed negative trigger that only comes on for 5 minutes or constant on the 791xv. Ive tested the heating control unit on the car and can find no singe wire for the defroster output. Since the defroster also kicks on the a/c I am assuming that the controll unit turns on multiple items when you press the defroster button? If that is true everything is controlled from within the control unit then I dont know how to wire this. I already got the rear defogger figured out. It is on a simple factory relay already. Can anyone tell me if it is possible to tie the defroster in or has had some experience with this? Again the car is 01 accord, 2.3, manual hvac system. Thanks!

The astrochart shows a BROWN / yellow at the switch.....NEG(-)  It does NOT, however tell if it needs a latched pulse of not.

Yeah thats the rear window defogger with the brown yellow.  I have that wired and works fine. Im talking about tapping into the front defroster and have it fire up when I remote start the car on snowy mornings. Anyone know how that can be accomplished?