My alternator is either a 130 or 140, cant remember. The stock GA cable in theory should be fine, but I'll do the BIG 3 upgrade as its free and i have a bunch of 2 GA welding cable laying around that I can do. I upgraded Battery - to Ground because it was cheap and easy and that 6 or 8 GA wire is pretty small. I was going to do the Alt to + and Block to - , but I didn't do it because while the Alt to + is super easy, the block to - is pretty tight and tricky, and IMO they both need to be done so they are sized the same.
I'll do the wire GA upgrade and see how that goes and if I can't get it I may look into some tech specs on aftermarket alts and do a bit of reading on that mechman dongle. Thanks.
My Odyssey battery charger will be here tomorrow and I'll disconnect my ML-ACR and hit both the batteries with a top up charge