Now is the time to use the alterations to the mount pad we made in the geometry step. Create a new joint connection and select the created surface on the mount pad as the reference geometry. Select the vertex of the line bodies as the mobile geometry selection.
Repeat for the remaining mounts: six vertices.
You should now have a total of nine joint connections, 17 surface connections, and six joint connections.
Run the redundancy tool to make sure you haven't over-defined a connection.