can i put an Awd system on my FWD Hyundai Tucson?I have a 2007 SE Tucson.with the switch covers on dashboard.If i can do it what would it cost to do this?..thank you

no what i want to know is is it possible to add the Awd system to my car.I dont know if the AWD Unit would fit in the car to enable 4wd operation.One reason i,m curious is that the awd unit in a subaru forester is the size of a medium grapefruit(ive seen one)and in modern cars i,m sure they are able to add Awd differentials to front drive systems(with modification)This is why i mentioned switch covers.(i was,nt clear about that)sorry.Any help in this matter from a mechanic/service person is greatly appreciated,and i thank you sir for replying