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XpressKit PKUMUX

Ignition override immobilizer for select 2004-2008 Chrysler and GM vehicles with factory anti-theft systems

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Item # 607PKUMUX

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Our take on the XpressKit PKUMUX

XpressKit modules work with your vehicle's anti-theft system to incorporate the convenience, security and luxury features of your Python™ alarm system.

XpressKit modules work with your vehicle's anti-theft system to incorporate the convenience, security and luxury features of your Python™ alarm system.

An XpressKit interfaces with vehicles by routing commands through your vehicle data system, so it's more secure. You have fewer wires to connect and, best of all, your extra key stays with you, not in your car.

Use the PKUMUX to interface with the alarm system in select 2004-2008 GM- and Chrysler-built vehicles with anti-theft systems. The compact module comes with harnesses and a built-in transponder data interface port. Warranty: 1 year.

Note: Before purchasing, please call us at 1-888-955-6000 to confirm that this product works with your vehicle.

Important: 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 speak to an Advisor before attempting this installation.

What's in the Box:

  • xPresskit control module
  • 18" Wiring harness (12 wires)
  • RF loop with 3' cable (2-pin plug)
  • Instruction Guide

Hands-on research

Product Research


Overview: The Directed Electronics PKUMUX is an Immobilizer interface for GM-LAN vehicles equipped with the GM PASS-Key III Plus style hybrid Passlock and Passkey 3+ anti-theft systems, plus all 2nd generation encrypted Chrysler Sentry key immobilizers. It is compatible with any remote car starter system, as well as with manufacturer's anti-theft systems. It also maintains the integrity of the manufacturer's anti-theft immobilizer system.

Vehicle Compatibility: The PKUMUX is compatible with the following vehicles:

2008 Enclave
2006-08 Lucerne


2007-08 Avalanche
2006-08 Cobalt
2007-08 Equinox
2008 Express Van
2006-08 HHR
2006-08 Impala
2004-07 Malibu
2004-07 Malibu MAXX
2006-07 Monte Carlo
2007-08 Silverado
2007-08 Suburban
2007-08 Tahoe
2005-07 300/300C
2007-08 Aspen
2003-08 Pacifica
2006-08 PT Cruiser
2008 Sebring Convertible
2007-08 Sebring Sedan
2004-07 Town & Country



2008 CTS
2006-07 DTS
2007-08 Escalade
2007-08 SRX
2008 Avenger
2007-08 Caliber
2004-07 Caravan
2006-07 Charger
2005-08 Dakota
2004-08 Durango
2004-07 Grand Caravan
2005-07 Magnum
2007-08 Nitro
2004-08 Ram
2007-08 Acadia
2008 Savana
2007-08 Sierra
2007-08 Yukon

2006-08 Commander
2007-08 Compass
2005-07 Grand Cherokee
2005-07 Grand Cherokee Ltd
2005-08 Liberty
2007-08 Patriot
2007-08 Wrangler
2007-08 Wrangler Unlimited
2008 H2
2007-08 Raider
2007-08 G5
2005-08 G6
2006-08 Pursuit
2006-08 Solstice
2007-08 Torrent
2007-08 Aura
2007-08 Outlook
2007-08 Sky
2008 VUE
2007-08 XL7


Installation and Operation: The PKUMUX requires splicing and hardwiring a number of wires into your vehicle's factory wiring. Experience with automotive wiring is recommended for installation. Three different wiring diagrams are provided in the manual, along with a chart to indicate which wiring diagram to use for you particular vehicle. No key is required for operation (NKR--No Key Required). Programming the transponder is quick and simple.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.