I have a 2007 C4S, the gauges on the instrument cluster all work great... BUT the glass is kind of foggy and spotty inside and out. It's almost like some condensation or sea air got inside somehow. The gauge faces themselves are perfect, just the glass is flawed. I bought the car used and love it but this one thing bugs me since everything else is in perfect shape. Any ideas to repair or replace the glass? Been searching on the internet but everything I can find is for old models. This is for the instruments gauges (just to clarify).