stock alarm
1. If alarm is set and door is opened, horn beeps and lights flash
2. The VATS system will not let the car start unless the key w/the proper resistor in it is used
3. If improper key is used fuel pump is disabled for period of time
Not sure if setting off the alarm disables the car though...
If you're in a high crime area or park in public places often I would suggest upgrading...
If they want something in your car they will get it if they are good enough no matter what alarm you have. IMHO it's not worth the extra money and wiring. Simply adjust the sensitivity and add LED's.


