if i order new headlight housing....how do i hook the old headlight hids to the new one????????????

 

It's easy, just remove the bulb and attach it's cover, etc to the new housing. Remove the screws mounting each ballast and replace the harness inside the housing from the ballast to D2R bulb. And finally swap over the rest of the bulbs.

Look here from some more info regarding the housing.

http://www.acura-tl.com/forum/showth...threadid=40231