Well, today while performing my first oil change on my new rx, I noticed an exposed nipple. Upon further inspection, I noticed that it was part of a split kind of thing (for lack of better word), the picture explains it better than I can. Anyways, is it supposed to hava hose connected to it? The other side of it does. It is just behind the oil filter. I attached some pictures.

 

thats your slave actuator. it a part of your clutch system. that nipple is where you would bleed the air from. if you had changed the boot and so on. its normal the way it is

 

yep you are correct that would be what it is