No code needed, your just loose all the settings i.e. clock, bass, treble, fade.....etc
EDIT: and your need to reset your windows
This prosedure will reset the windows limits so that when you open the door the window will drop the 1/4 inch & drop/raise with roof
Sit in the car, and put the key in position 1, so you have power to the windows.
Push and hold down the window switch, and keep it held down for 5 seconds after the window is all the way down. This re-sets the memory, telling the motor, in effect, "Remember where we are now? "
Roll window back up, and release switch.
