adj wiper swtich

Hello all, i need some help, out of all the aveo hatchbacks i have looked at none of them have the adj. wiper switch including mine, mine has the one preset speed, can i install the adj. wiper switch on mine and how would i go about doing it, thanks.

For the front or rear wipers?

They are factory installed on my '06 hatch, there when I bought it.

It is for the front wiper, almost all the sedan models i have seen have the adj. intermitten wipers.