Axxess LOC T-Harness For 2019-Up* Chevy & GMC Full System or Subwoofer LOC-GMH4 This Listing Includes: (1) Main T-Harness (1) Set of Speake Wire (1) Remote Wire Upgrade your vehicle's audio system effortlessly with the Axxess Vehicle-Specific Active LOC T-Harness designed for 2019-Up Chevy and GMC vehicles with RPO Code IOR. This versatile T-harness allows you to seamlessly integrate a subwoofer or complete audio system with your factory radio. Compatible with most sound processors, line output converters, and amplifiers with high-level inputs, it offers unparalleled flexibility in system upgrades. The harness provides easy access to speaker-level output signals from the factory radio, simplifying the installation process. With comprehensive signal connections including constant 12-volt (10-amp fuse), ground, and remote turn-on leads, connecting devices like active signal processors is a breeze. Equipped with mating 8-pin plugs that remain connected during installation, this T-harness ensures that factory speakers receive continuous power while accommodating aftermarket amplifier setups.Features: Designed for 2019-Up Chevy and GMC vehicles with RPO Code IOR LOC T-harness for non-amplified systems Allows addition of standalone subwoofer or complete audio system Harness connections include 12V (with in-line 10A fuse), ground, and remote turn-on wire with butt connector 4-channel speaker-level outputs for versatile integration Input and output quick-connect harness for easy installation Works seamlessly with Axxess line output converters