Abstract: The invention deals with a support bracket for mounting accessory items in a vehicle employing available mounting facilities. A support bracket is fashioned with a first surface containing mounting apertures to receive the mounting hardware of an accessory item such as a fire-extinguisher, CB radio or the like. Coupled to the underside of such first surface are a pair of mounting legs dimensioned to sit astride the usual transmission tunel of a motor vehicle. Placed in the ends of such legs are apertures to receive the mounting bolts for the seat belts of the vehicle whereby the support bracket can be mounted without the need for drilling any further holes or adding any additional hardware beyond that already available in the vehicle.