Can someone share their Dual Battery wiring diagram set-up?
I have a Moomba 2007 Outback V and have had 1 battery for several years now and I've recently decided to get tower speakers and have had a situation where I can't start my battery.
I've since bought the OEM VSR and switch online but I don't have a clear wiring diagram with wire gauge and fuse specs on it so that I can wire my second battery safely.
I'm also not sure if my current alternator would be able to handle charging two batteries or would that have to have been an upgrade.

Any help would be much appreciated.

Thanks,
Christian Sumabat