Fog Lamp circuit breaker pops. Why?, Haven't a clue where to start Options

[Rav914]

Short background: I installed a set of Hella 500's on a car that didn't have fogs to begin with. I decided to follow the directions that came with the lamps. It didn't work. I just burnt up a wire (now repaired) and wasted my time.

So...I bought an OE switch and connected the lights to the wires already in the car.

Connections:
Black wire on lamps to the yellow and white wires from the car.
Blue wires on lamp (ground) to brown ground.

K on switch to gray/red.
31 on switch to brown ground.
15 on switch to brown/blue

on the CB panel I see the red/black, gray/red, white/blue, and white/yellow wires taped together and go under a black relay.

I'm assuming all is good. But when I turn on the lights and pull the fog light switch, the lights dim momentarily and then "snap", the CB pops.

What am I missing? Do I need to install the relay that came with the lights? I'm so bad with electronics, I don't even know where to start. Except that I checked and cleaned all grounds. I checked and traced all wires - no issues. (IMG:style_emoticons/default/sad.gif)

[Jeffs9146]

As I understand it, the relay is to transfer a larger load from a direct battery source with a lower switch rated source!

So, you should run a larger red wire from a larger + source to the relay and use the switch to make the connection (through the relay) to the Ground which would go to the chassis to light the new lights!

All wires from the relay to the lights would need to be rated to the amp load of the lights as well as the + to the relay directly from the battery or large source. The ground wire to the light should be the same size as the larger + wire now installed!

The two wires from the switch just trigger the relay to transfer the + from the relay to the light which is grounded.