iDatalink Maestro HRN-HRR-GM3 | Plug-N'-Play T-Harness | For GM3 Vehicles With Speaker & HU Connectors

Installation harness and chime speaker designed for use with Maestro RR or RR2 modules compatible with select Chevrolet, GMC, and Holden vehicles 2014+ Works with both non amplified and amplified systems BUT DOES NOT retain the factory amplifier (it must be bypassed). Optional head unit adapters available for most major brands radios for a simplified installation. Please refer to the vehicle fit guide for vehicle-specific feature coverage