Vehicle trunk mounting systems and methods are disclosed. A mounting system comprises a frame adapted to be secured within the trunk and a platform adapted to support a device thereon. The frame comprises a hinge portion and a guide portion. The platform is movably secured within the frame. The frame is rotatable around the hinge portion between a first position in which the platform is substantially horizontal and a second position in which the platform is substantially upright. The platform is slidable within the guide portion when the frame is in the first position. A mounting method comprises mounting the device on the platform, slidably repositioning the platform within the frame, and rotating the frame between the first position and the second position.