First of all, how does the MC mount attach to your Ultra? Problem #1 is that there isn't an available 12V power source other than the cig lighter. You will have to remove the outer fairing and splice into a hot lead if you want your power hard wired, or plug into the lighter. Problem #2 is that your audio system doesn't have a rear AUX plug. You can either route the plug that goes into the Aux port (front of the H-K unit) thru the fairing, and back out the grommet for right side wiring, then plug it in externaly to the AUX port-or- send your H-K unit to someplace like Iron Cross Audio and have them add a rear AUX port. As far as I can tell, the only thing you really get with the Zumo is a water resistant (and very expensive) Nuvi. I also don't know what your expectations are for actually operating your Zumo but I don't think the idea of interupting your radio station to blast out an upcoming turn is going to be what you expect either, but YMMV.