Support system for additional interior fitting

The system (1) has a carrying frame and attachment devices with an arrangement for preventing unauthorized release. The essentially L-shaped carrying system is mounted in a floating manner in the region between the outer rear seats and is attached to the vehicle at least by rear and lower attachment devices. (2,3) The auxiliary equipment is attached to the carrying system by the upper attachment device. AN Independent claim is also included for the following: (a) a method of crash-proof mounting of a carrier system to a motor vehicle and connecting the carrier system to an existing electrical/electronic system.