[firebirdzig]

I want to install a second battery on my '94 Mariah. I want to be able to sit on the boat and listen to the stereo system and not have to worry about my boat not starting. I have been looking into a 4 way switch but have no idea how to run it. Can someone help me out with any advice or ideas. Thanks

[MAJIC]

It's not hard to do. Here's a recent thread that discussed this: Dual battery

I hope that helps. If not, give a shout back.