Thanks guys.
Yeah Dremel was God sent!!!
My headlight fits H4 bulbs, which has way different retaining base/plate....So I cut out the retaining plate from the factory H4 bulbs and fit it to D2R bulb..
I retrofitted only the bulbs, not the projectors or IS300 reflectors, so my headlight housing looks OEM.
About the beam patterns, I am still experimenting with it. It's getting better. It's pretty good right now.. But I want it better.
I learned from that famous HID web page(I forgot the URL) that focal point and bottom shielding is crucial for the H4 housing, so I am making shields out of beer cans to cover the bottom of the D2R bulb, so it doesn't create any upward beam, which will blind on-coming traffic.
SpectraBlue... Do you have D2S bulbs? I think you do since you got them from audi, which uses projectors. That could be one problem.. You should either get D2R bulbs or create some sort of shieldings. I don't exactly know how 9006 bulbs works.. I will get you that HID web page..