then, i soldered the resistor to the positive wire of the LED, and soldered another wire (positive) on the other side of the resistor. i took me quite some time to figure out a wire layout. there is only limited space inside the houding, and the wires mustn't touch each other. i came up with some kind of "loop", i hope you can see it on the picture. almost forgot: it is crucial that the LED points towards the lens. otherwise you will not have a bright signal. and, also very important: you have to test the setup now. if it does not work, fix it before you glue everything in.