Abstract: An interior panel of a vehicle, in particular a wall panel of a rail vehicle used in passenger transport, with fastenings and installation openings for mechanical, acoustic and/or electric functional or display elements is provided. Wall panels which are identical in each case are used at same installation sites of vehicles of a same kind, and an appropriately configured, standardized mounting element which is placed exchangeably onto the wall panel or is inserted into the wall panel is provided for receiving the mechanical, acoustic and/or electric functional or display elements.