Hi guys, bought some aftermarket LED rear lights for my 2000 Audi S6 about 6 months ago.. recently I started getting a bulb warning light come up on the dash when I applied the brakes. Started off as intermittent but now more or less all the time. What I have discovered is that with the engine running when I apply the brakes one of the brake lights comes on and then goes off, causing the alarm. One side is perfectly fin however and stays on. Upon further investigation this is the outcome No Ignition Engine off / all fine Ignitiion on, engine off / all fine Engine running / light fails intermittantly sidelights or headlights on / all fine Someone has suggest that due to the less power required by LED's that this boils down to an earthing problem. am I right in thinking that as its when the engine is running it could be engine earth? If so can someone tell me where I might find the engine earth, or indeed any of the earths so I can check that they are all ok. As a side thing the same side (N/S) passsengers lights failed around the same time, so when I open the soor the lights no longer come on, nor do the interior lights with the door opening. Sorry for the long winded explanation, any help or thoughts or similar experiences would be appreciated. Thanks W.