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Antenna Coaxial Cable Replacement - Navigational Signal Splitter to Human Machine Interface Module

WARNING: This page is about a different car, the 2019 Chevrolet Traverse. However, it is still accessible from the selected car via links, so may be relevant.
GM4770313Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
Preliminary Procedure 
Radio Bracket Replacement 
1 Antenna Coaxial Cable - Navigational Signal Splitter to Human Machine Interface Control Module
Procedure 
Disconnect the antenna coaxial cable from the human machine interface control module.