I am going to replace the plastic rocker switch surround on the center instrument panel. The service manual says there are 4 screws that hold it on the back panel which I can get to. However, it looks like there are another 4 screws on the bottom of the panel that may hold the display panel in the plastic surround, and I cannot get to them without taking the center instrument panel out completely. Is this necessary, or can I do it by just removing the 4 crews per the service manual??