http://www.stylintrucks.com/parts/high-4_headlight_conversion_kit/1104000020_132.aspx
Look I have been killing myself on this forum trying to find out how to do the 4 Hi Head lights on my truck - THE RIGHT WAY -. Im not saying that you all are doing it the wrong way. I just dont want to hok up the diode and than find out a week or a year down the road the the diode failed and I have to do it again.
Here is the 4 Hi kit from stylin trucks, plug-n-play comes with everything you need.
Hope this works, and remember you get what you pay for.