I didn't get a picture of it when I saw it yesterday, but my friend's install of the 660 looks perfect. This is what he used
http://www.kuryakyn.com/index.cfm/go/Home.ProductDetail/IMID/931 Here is what he did to make it work perfectly. The backing plate is tall, for a phone mount. He cut the back plate down to match up perfectly with the size of the back of the 660's cradle. He then painted just the back plate black, to match the cradle. When he told me he was going to do this, I thought he was nuts, until I saw it. It completely blends in with the cradle and it looks like the cradle is just mounted directly to the chrome mount. It's a completely professional look install and the position is perfect, with it being mounted directly to the switch housing. It even looks good with the 660 out of the cradle, since the 660 comes with an insert to put in the cradle when it's not in use. If I ever get around to remembering to take my camera with me, I get some photos. I'd use my phone, but those pics would never do it justice.