1998 Volkswagen Passat DOOR LOCKS, WINDOWS, SIDE MIRRORS SOME

SOME TIMES MY CAR WONT TURN OVER WHEN CRANKED AND SOMETIMES IT WILL. MY POWER WINDOWS WILL NOT WORK SOMETIMES AS WELL AS THE SIDE MIRRORS. WHEN I LOCK IT WITH MY KEY, IT WILL SOMETIMES ACTIVATE THE FACTORY SECURITY SYSTEM AND SOMETIMES IT WONT. IT SOUNDS LIKE A SHORT CICUIT BUT IDONT KNOW EXACTLY WHERE TO LOOK. THE BATTERY IS TWO DAYS OLD. ALSO WHEN I DIRECT WIRE IT FROM THE BATT. TO THE STARTER IT STARST RIGHT AWAY. PLEASE HELP.
NELSON IN RAHWAY, NJ.