95 VW Jetta wont start New Battery

95 VW Jetta, tried jumping the car no luck, hazard lights would keep flashing could not turn them off, put a battery charger on overnight and it started ran for a week fine then today after driving all day it would not start again. Put as new battery in and the same thing... wont jump, hazard lights flash on their own, wont even turn no solenoid action at all. car is stuck at the beach right now. Any Help would be appriciated, mark