CRUX CS-GM31L Radio Replacement Interface Module Instruction Manual
Learn how to install the CRUX CS-GM31L Radio Replacement Interface Module with these step-by-step instructions. This module retains factory features in select GM LAN V2 vehicles while functioning with an aftermarket radio. It also retains chime functions, factory Steering Wheel Controls and backup camera. Perfect for Buick 2015-2016 ENCORE and 2017 ENVISION models. Get the most out of your car's audio system with the CS-GM31L Interface Module.