Hi working on my fd3 1993 4 days ago fitting new indcators flicked the hazard warning light switch without knowing the positive and negative was touching on the indicator..... as soon as i pressed the switch all electrics on the car went nothing works wipers lights fuel pump nothing like it don't have a battery......I have tried all bay relays and all work all fuses and all work and interiour fuses grounds are OK? Any help would be appreciated