Grady White Freedom 235 2021 have had a problem with battery drain on starboard battery when battery switch is off. Bilge pump and yellow entertainment radio cable to maintain presets were hot wired. I had radio preset cable moved to the battery switch (no longer hot wired). Still seem to have a drain problem when switch is off. Highly doubt it is the bilge pump. Recently discovered a breaker I'm told sparked when battery cable was attached to the battery (switch was off). This device is mounted right under the bottom of the hatch opening that accesses the batteries. Was told this might be "Clean Power" to the Yamaha motor. Because of this he was reluctant to switch off the breaker. With minor research, I believe Grady White does not use a clean power connection but rather through a standard battery switched harnas. Is any one familiar with this device and know what it is? What is connected to it?