It is the plastic piece, white , under the black cover with the defrost sign. It goes on top of the ball spring and it is used as a rocker for the switch.

To get to it you just take the switch cover off , and the rocker is right under that.

Man that would help me a lot , let me know how much you want . thanks

If you still need a pic. I'll try to take one of the broken pieces, since I put the assembly together.