A method and a device for sealing off one or more channels formed in an electric connector places a plug in a channel using a plug support receiving the plug from a plug feeder, and a guide and thruster for transferring the plug from the plug support through the guide and into the channel. An ink composition having a viscosity in the range of about 28 seconds to about 35 seconds as determined using a Zahn #2 cup and including at least one solvent having an evaporation rate relative to n-butyl acetate of less than 0. Preferably, the cross member is movable between a stowed position, wherein the cross member placed in an unobtrusive location, and an in-use position, wherein the cross member extends across the torso of the nursing mother. A detector and a processor are used to generate data representative of the surface topography of the three-dimensional structure based on the measured characteristics of the light reflected from the structure. The notification may include one or more options to respond to the notification using the mobile communication device. Embodiments also relate generally to vehicles comprising roof mounted media centers.