Something sort of unrelated here- since my tail light was broken, I removed it, waiting on a new one or getting to this brake light converstion, I found out if you have the tail light harness unplugged from the rest of the harness, the head light does not work. I verified this last night by plugging the broken light assembly harness back into the connectors and the head light works now. Guess I need to study that lighting wire diagram more and see if the head light & tail light are sharing a ground?