Hello;
So first you have to decide.. left hand or right hand.
I am left handed so it was:
I got a Ram top-of-the-clutch-reservoir mount. Then a 1 inch clamp and the standard ram mount that comes with the Zumo. Do you have the XM interface?? If so then you might want to turn it around as opposed to have it stick out the back where it will interfere with the swing of the handle bars on the wind screen. The pix I uploaded shows the WRONG way. I don't have a shot.. but just turn the mounting plate around so it comes over the top of the Zumo.
Hope this helps.