First the easy answer:
AUX is primarily the yellow/black wire and it's a negative trigger output.
Option 25 in the remote starter settings lets you play around with how it reacts to pressing the AUX button.
Option 39 activates the AUX output when its below -5 celcius autmatically.
Now for the reservation mode:
What is the 12 digit service number of that EVO-ONE?
Where is the little yellow wire from the 20-pin connector connected? Please look in the car, i spent a while on the phone once and his issue was that it was connected to the big yellow wire (yellow to yellow). It needs to be on ignition; so the thicker pink wire at the evo-one ignition harness.