I currently am putting a system in a 2020 toyota 4runner. I will a 320 amp alternator. I currently have the stock battery in and am wanting t9 add a 40ah lto bank to supply power to not only my audio system but to my aftermarket accessories as well. it should be more than enough to do so. I would like to keep the stock battery for the vehicle itself and rum everything else on the lto 40ah bank. is there a way to achieve this and isolate the two chemistries from eachother??