whats a good place to buy the JDM black housing corners? i know autodynamic has them....is there any other places that are cheaper or what??? ....im starting my JDM headlight project soon....gonna polish up the headlight cover and stuff...ill try and take before and after......for polishing i read that the sanding method is the best??? is this true...asiandooood did them that way and from the pic they look brand new Headlight Polish