Vacuum Leak in AC system- Where should I look?
 

After my continued troubleshooting of the vacuum system I have come to find out it is in the line conveniently located in my dashboard. There is a line that goes from my brake booster line to a 4 way connector. One of the lines off of this connector is for my air conditioner. I have plugged this line and all my tranny shifting problems have gone away. I want to try to locate the place of the vacuum leak.

Where have most of you found a vacuum leak in you air conditioning system. I popped the kick panel on the drivers side and it seems like the line gets routed from the drivers side to the passengers side. I was so tired I couldnt take it all apart again and put it back.

Any suggestions as to where I should start to find the vacuum leak in my A/C system???