Drain on my main boat motor battery

[wiperhunter2]

Yes, I have a volt meter, that is how I got the voltage readings above. I'm not sure if I will need your switch because over the weekend I did some more checking and found out the wire that is drawing the power does connect to my radio. I've got some more checking to do but if it turns out that it is just the radio and not something else, I think all I will need is a simple toggle switch. I would still like to see a pic of your switch, just in case I need it.
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