FITS THE FOLLOWING VEHICLES: 
Chevrolet
Colorado  2015
Silverado (1500 series)     2014
GMC
Sierra (1500 series)  2014
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GENERAL FEATURES:
An all in one radio replacement and SWC interface, the innovative new RadioPRO5 comes pre-loaded with OnStar retention, amplifier retention, SWC software, navigation based output signals and other features that save time and money during installation.
Product Features
Retains OnStar Telematics system
Retains front and rear park assist
Data controlled outputs for connection to your navigation radio; speed, reverse and E-brake status output wires
Retains original steering wheel control functions with the new radio with no additional interface or programming needed
Data controlled RAP accessory output
Works right out of the box with most radio brands
Keeps vehicle data-bus intact for service
Interface can be quickly updated if needed from the PAC website using a PAC-UP USB adapter