Pass Tag Security Package

Has anyone installed the Pass Tag Security Package on their H3? Just curious as to how easy/difficult it is to install.
From hummerpartspeople.com
"Pass Tag Security Package for your '07 Hummer H3:
Attach the key Tag to your key ring. To start the vehicle, simply pass the Tag close to system reader. A confirming chirp will signal that the vehicle can be started in its normal fashion. The system automatically re-arms whenever the ignition is shut off and 30 seconds have elapsed."

List Price: $122.00 | Your Price $103.70


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