Hi, I have a 2007 XT125X and I know the problem that you are on about. The problem with these bikes is that the parts available are fairly limited so there is no room for any modifications especially with the wiring loom. The front headlight connection, I know (from experience) is a BA20D which is starting to become more uncommon on motorcycles. I bought a 45/40w halogen light and I've never looked back. Its not brilliant but it is most certainly a marked improvement, on full beam and dipped. They're available from ebay, the item number is 231120828933.