Onstar DQ2981 Cam Lock Installation Kit for OnStar FMV Use this mounting kit to install the OnStar FMV mirror in your vehiclemirror mount. Works on your vehicle's original Cam Lock-style mirror mount The Cam Lock Installation Kit consist of Cam lock installation bracket, Tube of 1-step glass primer, 2 Dual self-adhesive syringes, 2 Alcohol prep-pads, Installation Instructions