I purchased some Optix headlight bulbs which are 80/90 watt bulbs. The bulbs are much brighter than the oem bulbs but they burned up the headlight connecter. I noticed that one light would always be dimm. Since VW's all have day time running lights they are always on causing the connector to burn. I was wondering if there is anyway to turn off the day time running lightsA? I ordered and installed an upgrade harness for my headlights but the I still have a problem with one of the bulbs. The connector hasn't melted but I have noticed that there is a black substance on the ground terminal for the connector. Has anyone else purchased one of these harnesses and have you had any problems with it?