This is what I did. I used two pieces of aluminum angle 2" and a piece of aluminum round that I drilled and tapped. I already had the GPS holder from my 1200 GS and if you look those are 1200 GS bar risers as well. In the other pictures you can see the antenna mount ($12 I believe) from RAM. I attached it to the bottom of the GPS mount to make it a single unit, and the last picture is of the earphone jack (so I can listen to XM).