Hacking i20

Hacking i20 2011 1.2 to enable the following features..

  1. Auto door lock when speed reach 30 kmph.

  2. Auto door unlock as soon as engine is off.

The car has OBD2 CAN BUS system.

What would be the coding using the Arduino?
Thanks.

Forget about the g scan scanner, etc...
I just simply want to hack the car.