The voice of experience cannot be ignored.&nbsp\\; Unless you've got to have the "Harley" model, why not buy a new Zumo 450 and spring for the extra car mount and 12vdc adapter.&nbsp\\; I've got a total of under $600 in my setup and absolutely love it and would not be without it.&nbsp\\; Plus, I get the added benefit of putting it in any car I desire, which is a real plus.&nbsp\\; If you want bluetooth, get the Zumo 550.
Either way, you'll be wishing you'd bought one sooner.&nbsp\\; I've got pics of mine from a much earlier post if you do the search.
EGK

 

Bought a 550 from gpscity.com for around $650 and installed it on the wifes 08 RK.&nbsp\\; It came with bike and car mounts. Wired it to the acc plug under the seat.&nbsp\\; Ran wiring under the speedo housing.&nbsp\\; In the car it uses the lighter plug for power and the suction cup to hold it in place.&nbsp\\; The only other purchase was the mating plug and pins for the acc plug.&nbsp\\;Great unit!