its a pain and deppends if you need the old stereo. i had the same problem. on the left hand side there is a clip undo this and pull the stereo out as far as you can there should be 4 screws which connect the front of the stereo to the rest of it undo these and take off the front panle. sperate the stereo from the metal case which holds it in the car u may need to bend it a bit but no worries it will bend back. the stereo should slide out and the disconnect the wires.
miles f lincoln, November 2004