Hello all. I've been having an a/c related leak in my Saab 9-3 2006 turbo. All of the fixes I've seen posted on this and other forums have been tried - resealing cabin filter, cleaning out a/c drain under firewall. Recently I noticed this unconnected wire/hose, under the passenger side panel, but I have no idea what it is for or where it plugs in. Wondering if this might be my culprit. I have visually confirmed that the leak is coming from the evaporator drain/sponge area.

https://www.youtube.com/watch?v=OFbneS_gjXM

Thanks in advance.