1998 FORD EXPEDITION XLT EDDIE BAUER EDITION RADIO TURNS ON I GET NO SOUND & DRIVER WINDOW NOT GOING DOWN?

JUST BOUGHT A 98 EXPEDITION EDDIE BAUER 90K MILES THE RADIO TURNS ON AND ALL THE ON DO THERE FUCTION BUT I CANNOT GET A SOUND FROM THE RADIO ANY IDEA WHAT THIS COULD BE ??? SHOULD I INSTALL NEW SPEAKERS AND SEE WHAT HAPPENS? ALSO ON THE DRIVER SIDE WINDOW THE MASTER SWITCH WILL OPEN AND CLOSE ALL THE WINDOWS ASWELL AS UNLOCK AND LOCK ALL THE DOOR BUT THE DRIVER SIDE WINDOW WILL NOT GO DOWN ANY SUGGESTIONS?