1992 mercedes vacuum pump wiring alarm

i have a 92 mercedes 300E and i'm trying to install remote door unlocks to. i've located the vacuum pump underneath the rear seats and i was wondering what wire i hook to it from the alarm. do i have to do the whole relay thing? and on the relay what wire from the drivers door? and what wire from the vacuum pump? i am really confused about my car

yes you need to use relays Steve Sverdahl

Swerksound Auto Electric

Red Deer Alberta

well thats helpful. ok so.. what wire do i hook up for the "from driver's door lock" and where do i find it and what does it look like. what wire do i hook up for the "to central vacuum lock system" and where do i find it and what does it look like.

Depending on left or right hand side, you're looking at a loom in the black plastic floor conduits. R/H side blue, RED / white and brown black, L/H side, green, RED / white and brown black. Blue or Green are what you want.  Another loom contains 2 cables, a brown and a yellow/blue. Grounding this yellow blue immediately on locking for about 15secs will close windows and roof.

ok so on the drivers side i took the door apart and inside the black plastic are 2 blue wires, 3 RED / white and a brown wire. and on the passenger side the same thing, there are 2 green wires. so when i make the relay am i correct in saying that the blue wire is "from drivers side door" and the green wire is "from vacuum pump" in the relay diagram?

I said FLOOR conduit, you didn't have to waste time taking the door apart! You will find those cables there. (MUCH easier!) If you have 2 blues, treat as one and cut and join together to relay side going to door is switch, side going to rear of vehicle is pum or compressor.