My dome light is missing the lens push on mechanism that turns the light on when pushed.  Is there any fixes for this or part replacement.  Also, will the light still work without this mechanism from the door switches?  The dome light assembly is all there, including the lens.  The part that is missing is the part that gives the lens the spring action, in which I presume is a switch that grounds out on contacts on the dome light body assembly when the lens is pushed in.  I can't find anywhere, a break down of the interior of the dome light assembly to see what that mechanism looks like.  Thanks!  

Edited January 25, 201610 yr by ynot1
more info added

are you missing just the lens?

Nissan still has the whole assembly. I bought one a few months back, somewhere around $40. Then I put an led bulb in, less heat that brittles the lens.