PAC LPHGM71 LocPRO Advanced T-Harness for 2019+ GM Factory Radio w/ Non-BOSEBRAND NEW PAC LPHGM71 LocPRO Advanced T Harness for Select 2019+ GM Factory Radio w Non BOSE Sound System Key Features: T harness for adding an amp to a non amplified system Fits select 2019 up GM built vehicles 4 channels of speaker level signals from factory radio Low power 12 volt, ground, accessory, and remote turn on connections In line fuse on 12V power wire Remote turn on signal output with butt connector Works with PAC LocPro Advanced line