There is only one wire I don't know where is supposed to connect.  It is a single brown wire, coming from the left side vacuum valve and it has an L shape connector, the kind we have for the power steering.  This is a late '85 van.
Funny, I can't find any wires for the power steering though.  I think, there was a pair for them too.  
Anyway, this single brown wire with it's L shape end, that looks like the ones that fit the power steering is looking for a place.  It is asking to be grounded, I'm sure.
Zoltan