help - wiring for early fogs / fresh air blower

[chickybok]

Hi

Does anyone have a diagram or could help me in wiring up the following (both for a 1966 912)

Hella 128 fogs: The wiring for the fogs are all in place - due to this item being a factory option. Do you need a relay? I've checked out the downloadable 1965 911 guide from Pelican but this is very different to the 912 (I've also checked the 912 one on Dave Hillmans site but this doesn't show the switch). How does the wires connect to the switch in the dash? The switch has four connections (listed one to four) plus the bulb /warning light holder. From the harness - I have 2 white with green strips wires plus 2 brown wires (which go into one connector) which I believe is for 'on' light?

The Early Fresh Air blower: Its the early type that sits in the smugglers compartment.
I have all the wiring / relay / and switch - But does anyone know how it all (the wiring) hooks up?

If you have any of the above installed or you have a diagram I would be forever indebted.

Many thanks

David (AKA Chickybok)
1966 912