rear wiper switch

[Frix]

hi guys

when i bought the car the previous guy had the fan wired up to the rear wiper switch, ( i now know the reason why)

well wired up the switch yesterday, and still no joy.
changed rear wiper motor as i had one spare and guess what, still nothing.

now ive got two blue wires, one yellow, one brown and (two black which are wired up to the plug already), the only thing i can think of is that i wired it wrong

my question is where do the rest of the wires go.

here is a pic of the plug that goes into switch

i had the brown below the black, the blue on the left and the yellow below that!

[Frix]

bump
someone must know

[Frix]

still have this problem, does anyone know what colour wires go where on this plug?