I'm at work, but as soon as I get home, I'll post a picture of my rig. I bought two Ram mounts so I could have options. I have the Helix 10, so I bought the large Ram components (D-size).
Option 1: I drilled into the plastic mounting plate on the front starboard side. Then I mounted this...
http://www.rammount.com/part/RAM-D-202-25-C-202UHowever, I found I like the head unit closer to my face, so I bought a D-size ball-clamp component and tightened it around my h-bar close to the seat. I LOVE this setup because it brought the screen closer to my face. I used some bicycle tube from walmart to protect that area of the h-bar from the ram clamp. The rubber on the tube also provides friction and prevents ANY sliding on the h-rail.
http://www.rammount.com/part/RAM-D-271U-12