I purchased this boat used.. When I insert key and turn I get nothing. No gauges no horn now power at all. I like to think I need new batteries. I will buy 2 tomorrorow but I wanted to know is the a master switch on board I will need to kick on or with new batteries will it just be turn key? I've never owned a vessel of this size and am In love and terrified all at the same time. There is so much more to this vessel then I've ever had on any of my previous boats. Any help would be much appreciated. Thanks in advance Jay