XpressKit 506T

Audio sensor for Python® and Viper security systems

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  • XpressKit 506T


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Our take on the XpressKit 506T

by Gabrielle Thorndyke

Get more out of your Python or Viper security system with XpressKit accessories. These handy add-ons let you incorporate luxury, security and convenience features into your vehicle.

The 506T audio sensor triggers your alarm when it detects the sound of breaking glass or metal-on-glass impact. Reliable CMOS technology eliminates false alarms by analyzing the frequency, intensity, and timing of sounds picked up by the remote microphone. You can configure this versatile module to report on different zones, and to work with a shock sensor. Warranty: 1 year

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Note: This sensor is not effective if the windows or sunroof are left open. If you know how to use a multimeter and have experience working with your vehicle's electrical system, you should be able to install this car security equipment. If you're unfamiliar with installing car security equipment, please call 1-888-955-6000 to discuss your purchase with one of our Advisors.

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What's in the box?

Download owner's manual

  • Audio sensor module
  • Microphone with attached 5' cable terminated by a single male RCA plug
  • 3-Pin to 4-Pin harness
  • Two-sided tape
  • Installation Instructions

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Overview: The 506T Audio Sensor is a low-current device that provides an added level of protection to an existing security system by detecting sounds that have the acoustic signature of breaking glass or metal-to-glass impacts. It consumes less than 1mA of current.

Compatibility: The 506T Audio Sensor can be configured to interface with the following different types of DEI and non-DEI vehicle security systems.

  • The 506T can interface with the shock sensor of DEI security systems with external shock sensors, using the wiring interface harness supplied with the 506T.
  • For most DEI security systems with on-board shock sensors, the 506T harness can be plugged directly into the auxiliary sensor port of the security system.
  • For other DEI and non-DEI security systems that do not have sensor ports, the 506T can be hard-wired to a negative instant trigger sensor input.

External Microphone: The 506T comes supplied with an external microphone to pick up sounds of breaking glass or metal-to-glass impacts. The microphone features an attached 5' cord terminated by a male RCA plug which connects to the female RCA port of the Audio Sensor. The microphone features an integrated bracket which is attached to a clean, flat surface using the supplied double-stick foam tape.

Sensitivity: The 506T features an adjustable sensitivity knob which allows you to adjust the sensitivity of the Audio Sensor to provide the best audio coverage for your type of vehicle.


  • Audio Sensor Module: Width = 3.385", Height = 1.005", Depth = 2.275"
  • External Microphone: Width = 1.495", Height = 0.705", Depth = 0.995"

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XpressKit 506T Reviews

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5 out of 5

Great feature to add

Written By Calvin, San Francisco Ca on Monday, August 18, 2014
Crutchfield Customer Review (What's this?)
Installed with Viper alarm. Needed for my piece of mind since my car has been broken into before I had my alarm installed.
Adds audio sensitivity when glass breaks alarm will sound
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5 out of 5

XpressKit 506T

Written By LMitchell, Sumter SC on Monday, March 24, 2014
Crutchfield Customer Review (What's this?)
Very easy to install and works like a dream.
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For a more in-depth review and enhanced detailed information on the XpressKit 506T, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_607506T/XpressKit-506T.html ).

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