What's wrong with the igniter box? If it's causing miss firing with the coil packs, then I believe this is because of corrosion inside of the box. A YRV Turbo owner had this issue and opened up the igniter and cleaned up the corrosion and job done. Failing that have you tried breakers on EBay? You also don't mention anything about engine size/model about your car? As a lot of models of Daihatsu share the same engines. so you could technically get an igniter off a YRV or later model Sirion or even Material that may be a direct replacement.