steering hweel vibration and slight jerk

I own a 2004 chrysler sebring 2.7L lx. I noticed recently my steering wheel
vibrates ever so slightly when in drive and idling at a light. switching to
neutral will remove the vibration. note, when i start my car switching from
park to drive, my car will jerk a little, not violently though. 130000km Im
thinking its the tranny mounts, looking straight down my engine
compartment, in front of the engine i can see one, are others visible. Do i
check when its running with two people or can i check without another
person or am i completly off thanks guys