2008 cadillac wont start after disco battery?

shitibrokeit

New member
my brother disconnected his battery to hook up the ground for his stereo. we've been doing this our whole lives, simple process right? you would think so, a simple battery dis and re- connect and all the sudden it wont start.
it rolls over and acts like it wants to fire, but wont. my guess is something to do with the security system, but they way these new cars are its hard to tell.
any help is appreciated.
 
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