Having trouble installing xenons...they keep cutting out after about a minute. If I flip the light switch off and back on, they turn back on for a bit, but do the same thing.

Originally, I was running all the power off the stock wiring harness (pre-facelift round connector) but I thought i might be a grounding issue (I still think it is) so I tried grounding the ballast directly to the car's frame but it still does the same thing. Thinking about running the power straight from the battery?

Does anyone have any suggestions? TIA!