A volt meter set to amps placed between the pos lead and pod terminal will show any current pull on your bike. Having an assistant pull the fuses one at a time whilst you watch the meter is the way to identify on which circuit the fault exists.
When the leaking circuit is broken by removing the fuse, the current will drop to nothing.
Haven't got a volt meter? A low wattage bulb with wire soldered to the connectors will suffice