Halogen DRL/High beam convert to HID
 

I am looking to convert the halogen DRL/high beams on my 07 coupe to HIDs. I believe I need a relay harness to ensure the right amount of voltage is running to the lights at all times. Can anyone give me a link to a harness they have used or recommend? Also, when I put on my low beams will the DRLs/high beams stay on or will they turn off like in normal use. I don't want to interfere with this stock function. When I turn on my low beams, I only want my low beams to be on unless I select to put on my high beams.

Thanks in advance!