300CD vacuum routing for door locks

I've found some posts on the vacuum lines on the 300D's, and they say the main bundle of lines are under a panel in the drivers foot well. I found them in the passengers foot well. What I can't find, is the "T" or "Y" or what ever you want to call it, that connects the drivers door tubing to the other side. Anybody know where those connectors are?

Just using a little logic, I can see that the"yellow/green" and the "yellow/red" could make it from the drivers door to the other side without a "T" or "Y", but the "yellow" (main vacuum from the pump) would have to have a connector somewhere.

Oh darn, in re-reading this before I send it off, I'm actually using my brain and it's starting to hurt!....I remember now that there were two lines in the engine compartment, they both connect to a check vavle. One is "yellow" the other is "yellow/black", I'll bet one goes to the main valve at the drivers door, and the other goes to the vacuum tank. I don't remember seeing a "black stripe" on one, but I'll bet there was. If thats the case, the system is really pretty simple. Any one know for sure?