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http://www.nissanpatrol.com.au/forums/images/imported/2015/09/300.jpg

if you look at the above Pic you will see two black Cables hooked up to the Regulator. They are MC4 Connectors and cables...

I was looking for something similar but you beat me to it.

Great effort

I went with the Redarc as they can be set for Calcium Batteries (Which I have).

Installed in a sealed Box which is opened when in use

http://www.nissanpatrol.com.au/forums/images/imported/2015/09/299.jpg

A bit junky at present but this is how close to the Battery
...

This is my Setup

61486

My Regulator is mounted on the Van within 18 inches of the Batteries