Xenon Headlight help needed!!

I just bought an '02 M3 a few months ago. I recently realized that the interior trunk lights have never worked. I did some work with my multimeter and found a way to get said lights to finally work. Now the fun part, as soon as I did that, the headlights (Xenons) quit working. I have gotten them to work again and neither the ballast or the bulbs are bad, however, now they will only work when I try to turn on the high beams and never anytime else. Is it possible that someone re-wired the headlights wrong or am I just a fool for connecting things that probably shouldn't be connected?

BTW here are some pics illustrating which metal tabs I connected and a strange box that I found underneath the headlights but not connected to anything. Another thing, The headlights only work when the headlight switch is in the off position.

disconnect what you did. sounds like you have a bad ground or something. also the turning on lows while that car is off is a feature (called home lighting or something like that) for cars that came with xenons.

that box is an angel eye inverter

Thanks, you were right about the home lighting thing.