I've updated my
dropbox spreadsheet. I was able to use the 745 CAN address and the 30 command to control a lot of things in the car: open the trunk, honk the horn, headlights, blinkers, warning lights, door locks, wipers, interior lights, ignition switch lights, defroster, display screen on dash, ON and ACC relays, etc. The BCM IDs tab has all the items I could control.
This is getting very interesting.