How to Install a Fake Car Alarm LED

Updated July 19, 2017

Installing a fake car alarm LED light can go a long way in deterring theft. Most car alarms feature a flashing LED light that indicates the car is locked and the alarm is armed. Using a flashing LED light to mimic this alarm feature may deter potential car thieves. As the electronics of a real alarm are embedded into the car's interior, a thief will be unable to know if the flashing LED is fake or if it is part of a real alarm.

Choose the location that you would like the LED light to be placed. Usually it is on the dashboard near the radio or the steering wheel. Remember that you want anyone looking through the car windows to be able to see it easily.

Using your power drill, drill out a small hole for the LED light if it is needed.

Locate the accessory wiring that routes to the interior lights of your car. Strip a bit of rubber insulation off the red and black wires that are connected to the interior lights.

Wrap a wire around the positive end of your flashing LED light and route it through the mounting hole. Wrap the other end of the wire around the stripped area of the positive wire going to your interior lights and insulate the connection with electrical tape.

Wrap another piece of wire around the negative end of your flashing LED and attach it to the stripped portion of the negative (black wire) that routes to your interior lights. Insulate this connection using electrical tape.

Install the LED light holder and then place the LED light into it. Use glue to secure the LED light into the holder and complete the installation.

Things You'll Need

  • Wire cutters
  • Blinking LED light
  • LED holder
  • Power drill
  • Wires
  • Electrical tape
  • Glue
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About the Author

Chester Rockwell began his professional writing career in 2003, as a beat writer for local publications and an analyst for market research firms. His writing in business and efforts as a publicist have been recognized in outlets such as Mashable, ReadWriteWeb, "WIRED" and "BusinessWeek," among other publications. He holds a Bachelor of Science from Rochester Institute of Technology.