The mic on top of the phone that is used for recording video and used for speakerphone calls is not working on my iPhone 4. I tried cleaning it out and restoring the phone with no luck. I plan on making an appointment with the genius bar to get it repaired but does anyone know (maybe an genius that is reading) about how much this repair is going to be? I was hoping they could just repair the mic and it be pocket change, but if they are going to charge me $149 for a replacement I cant do that right now (just lost my job). If it is going to be the entire replacement fee, I might just grab the part online and repair myself, does anyone know if that can be done somewhat easily?