I have one that looks like yours. Like Buzz I prefer it mounted above the clock, especially with a loaded up tank bag on. I made a bracket that picks up on the mirror mounting studs on the FZS600 Mk 1. I found the reflection on sunny days a problem so made a sun shield from a plastic container and painted it black. (Container was from "Persil Bio Capsules" 20 off, used in the washing machine the wife tells me. Other soaps are available.) Don't know about the soap things but the sun shade works fairly well. I have a 12 volt socket on the fairing inner pannel which it plugs into, also used for charging the phone on extended trips.
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