i just got a optima battery for the '07 yukon for $100. without thinking, i turned it the way the old battery was facing therefore hooking the battery cables backwards. i heard something pop that sounded like a fuse but i dont know where to look. is the the 175 amp fuse in the "fuse block" thing on the firewall? i've only had this yukon a couple months, i dont even know where all the fuse panels are yet... any help would be greatly appreciated. thank you!!