I just bought and installed after market Halo Projector CCFL Black Headlights on my 2006 Impala and would like to know the best way I can seal or protect them from yellowing or cracking/ spiderwebbing? From experience with my last 2 sets the aftermarkets spiderweb pretty bad and these ones were about $260 so I definitely want to protect them. ALSO, the left turn signal isn't working and was wondering if anybody can suggest a solution? Maybe there's something I'm missing or don't know a trick to get it to work? I do smell a somewhat rubber or burning smell coming from the assembly but I just assumed it was because they are new.