Electric Windows using 5 pin relay

Hi  Guys
car 83 gti 4 door, aftermarket power window or from golf mk2 16v
I had a volt drop issue on the car ( possibly still ) so disconnected the power windows as part of the testing. Now my drivers window doesnt work.  it is using a 5 pin relay with 30amp , 87a and 87, 85 and 86.
My question, where does the cables attach and its function, eg, battery + to terminal , battery - to terminal, driver pair ( joined 2 cables ) to terminal, passenger pair ( joined 2 cables ) to terminal, and black wire to terminal#
30
85
86
87a
87

Thanks
 

factory system would be a 4 pin relay:
30 - permanent live spade P
85 - earth
86 - ignition live to spade G 1, 2, 3 or 5
87 - to window switches

Thanks for that!
the windows are sorted now, however, i got the brown wire and black wire mixed up on the terminals, resulted in a hot wire melting from the switch backwards, replaced what I could and its all good now.
thanks