I wanted to power mine from the ignition fuse so it would turn off and on with the ignition. But I couldn't find an open terminal so marked in the fuse panel, so I just wired it direct to the battery. I have the detector mounted to the top of the instrument cluster with Velcro - I can't get the suction cup holder to stay on my car's flat windshield for very long, so I can't imagine one staying on a sharply curved bike screen with all the jarring and vibration present.
I recently read a post on one of the Hayabusa sites that outlined how to wire an accessory like a detector to a lamp harness in the fairing so it is powered by the ignition. Next time I have my inner panels off, I intend to do that (if I can find that post, of course).
Ed
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