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This Interface Harness serves as an interface between the factory wiring in the GM vehicle and an aftermarket radio or audio system. It is designed to simplify the installation process by providing a plug-and-play connection. The HRN-RR-GM2 harness ensures that the necessary electrical connections are made correctly and allows the aftermarket radio to work with the vehicle's existing features, such as steering wheel controls and factory amplifiers.
The ADS-MRR is a module that connects to the IDATALINK HRN-RR-GM2 harness and acts as an interface between the aftermarket radio and the vehicle's steering wheel controls. It allows you to retain the functionality of the steering wheel buttons, such as volume control, track changing, and source selection, when upgrading the factory radio.


The HRN-AV-GM2 harness is an additional wiring harness that may be required for specific audio and video installations in select 2012-2014 GM Trucks/SUVs. It provides the necessary connections for integrating additional audio/video components, such as adding a backup camera or connecting an external audio source.
These components, when used together, provide a comprehensive solution for replacing the factory radio in compatible GM Trucks/SUVs while retaining the functionality of the steering wheel controls and enabling the integration of other audio/video devices. It is important to note that compatibility may vary depending on the specific vehicle model and audio system configuration, so it's recommended to consult the product documentation or a professional installer to ensure proper compatibility and installation.

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