[crazy_marty]

I had same problem. The 9004 and 9007 kits are the same bulb and ballast? I think? What I had to do is. They both have the same connection on the stock blue original plug. Now they have (9007 and 9004) the same ground .... The other 2 wires are reversed. If you are careful you can bend the metal tabs and pull them out of the socket. Just switch location and done. Look carefully on the instructions you should have a small picture of 9004 and 9007 (wires are not the same location) Hope this helps. It has been a while since I have done it and cant remember the 2 color wires I switched.

Good luck!