Dodge Magnum shifter knob

I have a 2006 Dodge Magnum, 2.7 engine, auto trans. How do you remove the shifter knob ?

I have an 05 2.7 magnum and Im trying to figure out the same thing. people tell me there should be a little set screw that holds it on once you pull down the little chrome collar but I dont see one and that thing wont move an inch