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Upgrade to 3 battery system? Help please...


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Currently running 1 battery on my 02 sundscape. I'm looking to seriously upgrade the entire stereo system soon. Amps, speakers, subs, and headunit! I would like to run 3 batteries (1 crank) and (2 acc) with a switch. 

Can anyone help me with the correct wiring? Would 2 acc batteries be neccessary or overkill?

Any suggestions or comments would be greatly appreciated!

Thanks guys!

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31 minutes ago, SMLbound said:

Would 2 acc batteries be neccessary or overkill?

This really depends on how you want to use the house bank. Mostly riding or drop anchor and jam the tunes all day for the whole weekend. This many not be clear until you know the scope the upgrades. 

Wiring depends on what type of setup you go with, not to mention some details that can be unique boat to boat, system to system.. 

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