k11 driving lights

[EscortMk1]

Hi

I'm trying to fit some driving lights to my K11. I was under the impression that if I fitted a relay into the 4 pin relay socket and wired them firstly (please bear with me here) onto the plug uner the brake servo with green & black wires.....nothing. Then I tried another plug behind the headlights with green & black wires...still nothing. I have a fuse inserted in what I think is the correct holder but I can't get a live.

I'm trying to do this properly and avoid tapping into the main beam circuit.

Any suggestions would be greatly appreciated.

Thanks

Tom