i have a 2000 chevy monte carlo and i try to find out how to install a motor window on the passenger side, and can i get it from a junk yard, or where is the best place to buy from?

you have to pop the door panel off and drill the factory rivets out then remove the glass from the regulator assembly then remove the glass then remove the regulator and motor assembly,if you don't know how to do this you can really mess a door up real good, so you might want to get a repair manual on that car it will help you a lot with this repair and other things you will be doing to it,good luck.