Redline Easy Connect Harness for 2019+ Silverado/ Sierra 1500
PRODUCT: https://www.opt-7.com/opt7-redline-easy-connect-harness-for-2019-silverado-sierra-1500/
INSTALL GUIDE: https://wintis.ladesk.com/964099-Redline-Quick-Connect-2019-SilveradoSierra-1500-Expansion-Adapter