A human vehicle interface for vehicle secondary controls includes a housing,
an
actuator grounded to the housing and having at least one degree of freedom, a follower
coupled to the actuator and having a degree of freedom in the z direction, and
a reaction plate having a first spatial relationship with the follower and defining
a position path for the follower, wherein the actuator is responsive to the reaction
plate at the first spatial relationship. The actuator includes a body and a control knob.