I have a 1988 Rinker Fiesta Vee with a Quicksilver shifter. The trim button is broken and needs replaced, but I cannot find the Model # of the shifter to order the correct part I also need instructions on how to R&R the switch. I am attaching a picture of the shifter. Can anyone tell me what the model # is or the part # of the switch? FYI the trailer trim button works fine, just the switch located on top of the shifter. Thanks