Horn-cables - where are they?!

I've been looking for the cables for the horn, but I can't find them. It's been some time since I removed the horn on my -84 GTi (lefthand-drive), and I can't remember where it was originally placed.
Anyone who can look under the hood on their car and tell me 1) Where does the horn go? 2) What colour are the cables and what loom do they come from?

Also, where are these connectors supposed to go? There is two of them on the same loom.
http://imgur.com/a/ybntQ Thanks!

on my early car the horn is down by the left headlight, near the battery behind the front grill.

84 should be on the frame horn under the battery, look for a brown and a black/yellow

The horns have 12V full time and they use the horn relay to switch ground to it.

I found the ground wire, power I can get from anywhere, so success! Thanks for the tip!