just bought a 91 300zx (uk spec),someone broke into it and cut wires.the car starts with the key but when ignition turned off the car still runs,i currently have it wired up to a switch to solve this.main problem is that there seems to be a constant feed from battery as it wont stay charged.car is at autosparks at mo but even he cant solve this without a wiring diagram.can anyone help please.cheers