How to remove a car door?

This greatly depends on make and model... but most vehicles have two hinges on the inside of the door... usually four bolts your have to take off with an extension and a ratchet. if you have power accesories you need to feed those wires back through the door wire boot... and also there is usually a stop pin that you have to remove in the middle of the 2 hinges which keep your door from opening too far...