I believe I might have the same problem. My HIDs are scheduled to be here Mon, and I too have been searching for install threads. I have also run into the same dilemma. Any xfire techs still out there?

Just out of curiously, I haven't checked yet but why can't you just use a volt meter to check? I haven't even looked at the housings but I figured this would be the best way to find out what is right.