The input on my XM100 is sometimes cutting out. slightly pushing down on the end of my cord so that the input moves generally fixes it when this happens so I'm pretty confident it's just a loose connection behind the input. The problem is I can't exactly figure out how to get back there. Removing the more obvious screws isn't helping. I don't want to send it to a repair shop because I'm sure it would be an easy fix if I could just get it apart. Can anyone offer any advice?