the back of your n/s rear headlight where the wires go into. I have still got shinny disco lights when i brake, and have now replaced the bulb holders and connectors, checked the earths on the battery but im still having problems. I have noticed that on the back of my n/s rear light a few wires have been cut, and i cant see why. If you could take me a photo of yours that would be great. Oh, and any other advice would also be appreciated. Thanks Jk.