2018 1000-5 Warn Winch is only mod. Winch was installed three years ago. 5/21 went for a ride some mud and 14” of water max. 5/22 went to start machine and battery completely drained. No starter clink or even dash lights. I than installed a new battery. Machine started and ran perfectly. Parked machine in a garage shut off and even removed the key from ignition. 12 hours later new battery completely dead again. It appears I have a electrical drain. Any pointers?