vacuum hoses - where is the other end?

[wheelguru]

I have a vacuum leak on my '78 123. It has been leaking since last winter but I have been living with it. If I lock the drivers door it slows it down enough so that everything works but the passenger door lock and sometimes the trunk lock. My question(s) is:
can I just disconnect and block off the door lock system for now?
If I can, where are the other ends (not in the door) of the hoses?
If I can't, I still need to know where the hoses go. Are they long hoses that go all the way to the engine compartment ? I lost track of them when they passed out of the door.

As per usual, thanks for all of your excellent help. -Andy