dual alt trailblazers

ok do any trailblazers owners in here run dual alts? if so would you mind posting a pic of it so i can have an idea what that bracket looks like, also i have a stock 150a and looking to getting a h/o alt now with a dual alt bracket would i need to get two h/o alt and replace the stock one or would it work with th stock alt. thanks in advance

oh yea its going in a 05 trailblazer, the amps will be 2 mm4000.1s for the subs and my batteries are 1 shuriken bt80 under the hood and 4 in the back