I need help. I have had my crew cab Z71 for almost 2 weeks. A few days ago I started hear a squeak while driving. I can't seem to pinpoint it . My son thinks it is coming from the windows. Has anyone ever experienced anything like this or does anyone no what it could be. When I put the window down it doesn't sound like it is a outside noise. The noise only occurs if i hit a bump or it is a rough road.