CRUX SOCGM-17C Crux Radio Replacement Interface with Chime for GM Class II BOSE Amplified and Non AmplifiedFeaturesRetains factory in select GM class II data bus vehicles while functioning with an aftermarket radioSupports bose monsoon and y-91 audio systemsRetains chime functionsBuilt-in chime volume adjustmentEia color coded wiring for easy installationSpecificationsDimension 8 5 H x 1 5 W x 5 LWeight 0 7 lbs- SKU WHL715