Plug and play with my 2007 Honda Shadow Spirit. The only thing was the instructions refer to the prongs as L B and E but they are not labeled on the part at all but some internet sleuthing showed me:
L - horizontal on top
B E - right vertical
I did have to use the slotted rubber from the rectangular original part because the slot that came with the new round part was facing the wrong direction. These were two very minor issues that were taken care of with minimal time and effort. Part was installed and everything works perfectly!