With Nav:
- Put Key in position 1
- Click on Menu button
- Go to Code
- Enter 0000
- Put Key in position 0
- Put Key in position 2 and try to start the car
- Immediately type in 0000 and deactivate
- The car will start automatically

This would definitely be cooler, if:
#1 We wouldn't have to re-enter the code, each time we turn the car off.
#2 We wouldn't have to actually turn the key at all.