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                                                This part is optional but here's what I did.  I had some aluminum, butyl-backed tape that's water-proof.  I lightly traced the outline of the R/R and cut the tape to slightly larger than the outline.  The tape I had is just shy of 2".  I used two pieces of the tape, each 4.5" long.  I also cleaned the underside of the seat pan with household rubbing alcohol to insure a strong bond.
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