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• Fully waterproof IP67 construction allows mounting in exposed areas without enclosures
A blue LED volt meter provides at-a-glance monitoring of your vehicle’s voltage
• High-Flow Machined Design – Promotes superior airflow for accurate midbass reproduction
With its patented technology
Maestro - HRN-SR-GM4 - MSR compatible radio replacement harness for select 2016 & up GM vehicles Fiberglass • Fully waterproof IP67 constructionMaestro HRN SR GM4 T Harness for Select Chevrolet & GMC Vehicles (2016+)Sold by Ultimate Marketing Upgrade your Chevrolet or GMC vehicles audio system with the Maestro HRN SR GM4 T Harness, specifically designed for select GM vehicles from 2016 and newer. This harness allows you to replace the factory radio while preserving important factory features, delivering a clean, professional, and seamless installation. Full functionality requires an ADS MSR