this is pretty much what you want since you can use 2 or 4 agu for your main one for the car, and then you have 2 additional outputs

http://cgi.ebay.com/BATTERY-TERMINAL...QQcmdZViewItem

http://cgi.ebay.com/Stinger-4-8-Gaug...QQcmdZViewItem

i like the one with ring terminals so you have additional output if you want to run a wire direct to your HID. either one is good make sure you have enough output to work in the future.

I think the battery should work but make sure you have clearance to close your hood once you use the replacement terminals.