I bought a used adjustable backrest on Sat.( its the Harley one) installed on 2010 Roadking, 2 questions, the adjustable part under the seat pushes hard on the seat cushion is there danger of it cutting into the cover? The cable and leaver assy. I cant find a spot where the bent pin fits into a hole and a bolt lines up with other hole on bracket, could someone snap a pic. show where it installs. Thanks