you need the whole window regualtor and guide setup, Very easy to change but hard to get, they are not cheep you need to make sure they cable isnt rustes else it will snap and you have no electric window, i was lucky and got mine for £3 at a scrap yard so look arround, you need the door loom off an elec window doner car realy, it plugs into the multi connecter then to the dash loom, then onto the fuse box, you car may have that part so u need to add a fuse/relay then just switches and motors etc.. Not to hard realy. Or you can make your very own loom from scratch and connect it to any live feed etc.. depends how good you are.