GreatZero

I have a 2010 Accord, i hear knocking and rolling sound under the dashboard, right behind all the AC controllers every time i go over a bump or rough road. Best way to describe this would be, its like there a bolt inside rolling and knocking. I had the same problem a year ago, but it went away after few days, and it just started again. I tried to take the glove box out and look behind them, but there's was no space. Anyone know about this problem?