is fixed to the inside surface of the main wall 10 c of the door pocket the vehicle accessory touch switch 32 controls to turn on a lamp 14 disposed within the door pocket the structure and operation of the vehicle accessory touch switch 32 will be described with reference to fig2 the sensor conductor plate 20 is disposed on a surface opposite to the touch plate 16 having a touch surface 16 t which can be touched by a human hand the sub conductor plate 22 is disposed at a position where its capacitance to ground is not markedly changed even if the touch plate 16 is touched additionally the sub conductor plate 22 is disposed near the sensor conductor plate 20 a distance between the sub conductor plate 22 and the sensor conductor plate 20 is such a distance that a change an environmental change in the vicinity of the vehicle accessory touch switch 32 due to an environmental change of the capacitance to ground of the sub conductor plate 22 becomes equal to a change due to an environmental change of the capacitance to ground of the sensor conductor plate 20 the capacitance measurement control unit 24 is connected to a ground conductor 26 as the ground conductor 26 the vehicle body may be suitably used a switch 28 is controlled by a control signal output by the capacitance measurement control unit 24 for the switch 28 a semiconductor device circuit which is controlled by inputting a pulse signal indicating a high electric potential with respect to an electric potential of the ground conductor 26 for a prescribed time length is suitably used for the switch 28 a switch which is changed to an off state if it is in an on state and.