1999 Chevy Blazer FLASHER KEEPS GOING

MY FLASHER RELAY BEHIND THE GLOVE BOX STARTS CLICKING, THE LIGHTS DON'T FLASH, ONLY THE RELAY KEEPS CLICKING. THIS IS INTERMITTEN PROBLEM. IF I APPLY THE BRAKES IT STOPS CLICKING. ALL THE LIGHTS WORK NORMAL INCLUDING THE SIGNAL LIGHTS. I'VE CHANGED THE FLASHER RELAY, NO HELP. I TURN UP THE RADIO NOT TO HEAR IT.
IF THIS IS RELATED? WHEN THE CAR IS COLD AND I APPLY THE BRAKES A RELAY BUZZES BEHIND THE GLOVE BOX, MAY BE THE SAME RELAY?
HELP