died at drive thru. no electrical power to restart, car completly dead on 1990 Ford Crown Victoria

car died at drive thru window, all electrical components are dead(i.e. headlights, interior lights, sterio, starter,ect.) hooked a new battery up, same results, nothing electrical will work. could it be a fuseable link or a main fuse? where is the fuseable link located? Any ideas guys? its been running fine until last night at the drive thru.

Asked by for the 1990 Ford Crown Victoria