converting to H4 headlights..question

[bigarmzz]

i'm in the process of converting my headlights to the H4's...(well the stock 4 headlight front end that is),

the problem i'm having is..all the H4's bulb's are 3 prong, and my factory harness plugs are only 2 prong

any idea's on how to get this to work? i called ipcw, and they told me that they thought all stock headlights were 3 prong plugs, so that dont help at all, and they told me to just call my local parts store, they should have an adapter...which i did,...they told me they never heard of such a thing..now i'm scratching my head

i know there's "bound" to be someone or several on here that have done this already, i searched but didnt find what i was really needing

thanks guys