CRUX SWRGM-49ACRUX (SWRGM 49A) RADIO REPLACEMENT W SWC RETENTION FOR GM LAN 29 BIT TRUCKS AND SUVS 2012 2014 W BOSE AMPLIFIED & NON AMPLIFIED SYSTEMS The CRUX SWRGM 49A is a premium interface for select General Motors LAN 29 Bit Trucks and Suv's. It facilitates the integration of an after market radio to fully retain factory features in GM LAN 29 Bit Trucks and Suv's 2012 2014 vehicles with Bose Amplified, Non Bose and Y 91 audio systems. This enhanced interface is
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