MAP sensor and tube
 

Hi all,
New to forum. I own a 2007 9-3 Areo. Last night I replaced the coils and spark plugs and as I was rebuilding the back side, vacuum attachments, etc. I noticed the tube for the Bosch 0 261 230 101 - MAP Sensor is missing. Not sure if it was there when I had to disconnect to get to the back coils and spark plugs. Unfortunately, here I am. Where or what does the tube for map sensor connect to?
Thank you!