as for the door panel pull of the trim at the top of the door 3-4 torq screws there pull off the side view mirror switch at the top of the door handle with the screw under it and the 2 plugs and screws on the bottom of the arm rest and off it comes.
as for the heat this may sound silly but there it a hot cold dial on the center vent or well there should be make sure its not turned only to the hot or cold setting and move it to where you want it to be