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Anti-theft device for an automobile audio set

  • US 4,866,416 A
  • Filed: 10/03/1988
  • Issued: 09/12/1989
  • Est. Priority Date: 10/01/1987
  • Status: Expired due to Fees
First Claim
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1. An anti-theft device for an audio set slidably insertable into an installation recess of a motor vehicle and which has an actuatable module means controlled by a change-over switch means which is actuated to prevent operation of the audio set when the audio set is pulled out of the installation recess, comprising:

  • a change-over switch means which, in at least one switching position, is electrically connected through a first plug connection element means at the rear wall of the audio set with a theft module means of the audio set, which change-over switch means is moved to a second position upon an unauthorized pulling out of the audio set to cause actuation of the theft module means as a result of a change of electrical potential, as a result of which the audio set is rendered inoperative;

    the audio set, at its rear wall, having at least a second plug connection element means connectable to a power supply from the wiring system of the motor vehicle;

    a housing contains the change-over switch means, as well as plug connection element means which match the plug connection element means at the rear wall of the audio set and which are connectable therewith;

    and wherein the change-over switch means has at least one contact connectable with the wiring system of the motor vehicle.

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