2005 tahoe running 2 runs of 1/0 cca and 3 batts juicebox black cherry, apple, and crescendo logic 31 Order a 270 amp 6 phase power coated red So I went ahead and order a stinger alt and was wondering a few things being the fact that I never had a beefed up alt before...would that be a problem running my stock and a stinger alt if not do I need extra part to do that. Do I have to run to different lines from the alt to the batts or can I just do alt to alt to batts...if so do I have to run the stinger alt first than the stock ???