Here is something you don't see everyday! I've had this on my shelf since the 90's! Never installed, NOS. The instruction sheet is dated 1994. For 1986-87 Buick Gn and T-Type. This unit plugs into the vehicles ignition control module and has a switch thats mounted inside the vehicle. You have to trip the switch to start the vehicle. If you are carjacked, trip the switch and the vehicle will stall after a short time delay. Send me your email address for pics. Comes with everything plus instructions. No wires need to be cut! $125 shipped. Paypal preferred.