Ok I have all the parts to tackle this project this weekend, I will be adding a second battery with a switch, BAT1 for starting, BAT2 for acc. I have read a lot on this and I think I can pull it off, although I just traced the pos cable to where it connects to the engine and 2 cables are coming out the main pos 2 or 4 gauge red one that goes to the pos terminal, and a smaller cable wrapped with black conduit, well I then see on the battery end that main cable connects to the terminal and the smaller one connects to the connector with the wire nut, but they seem like they didnt take the same route getting there (it might now be the same one).....Anyway now that your done laughing (I am a newb) where should I connect the smaller cable? to BAT2 or common on the switch? Thanks in Advance Mercruiser 4.3 MPI
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