My uphulstery guy is reuphulstering the whole boat, but the only thing we cant get done is the one panel that has the control handle on it. He had tried removing the 4 screws on the base of it but that didnt do it. Anyone have a chart of how this thing disassembles? <br /><br />Its a side mount control from a '89 mercruiser 5.0. Any help is appreciated 