like you said mate take the door card off lower the window down half way, you will have to move the plastic cover covering your window regulator, you will see two clamps which are attached to your regulator and window, there are a 10mm bolts in each of them loosen them off (dont need to take them out) and you should be able to pull your window up and free of the claps then just lift one end up and slide out of the window guides/seals