Wiring?

I HAVE A 99 BUICK PK AVE ULTRA,PWR SEATS WENT OUT 2 MONTHS A GO. RECENTLY WHEN I ACCIDENTLY BROKE THE WHITE PANEL BOX NEXT TO THE DRIVER SEAT, STRANGELY MY RADIO/CD,POWER LOCKS, AND TRUNK BUTTON WILL NOT WORK. CHECKED FUSES SO FAR NONE BROKE, COULD IT BE A BAD WIRE SOME WHERE, OR DO I NEED TO CHECK ALL FUSE BOXES?