Hi Could someone advise me what the fault could be? The doors unlocking system doesn't work, the dash is not on expect a couple of lights on a couple of buttons. When I turn a key the car doesn't start and there's no buzzing sound which I experienced when the car had a flat battery before. A friend tried to jump start me the other day, but it didn't work. We might have connected a negative lead wrong as it's tricky to get to it. Could it be a completely dead battery? Or a fuse? Something else?