For anyone with a problem with the flickering lights i suggest going here
3B Specialties : Home
call the number for patrick because he is awsome and will help you all the way from answering any questions and buying them for you right then and there.
also, the HID headlights for the PT Cruiser 01- present require a special modification which will get rid of the flicker issue. this is the best option right now and with fantastic results. will post pictures and upload vid of the results when i get my camera fixed on friday. i went with the 12k headlights low beams and they are awsome!!!