What
should be done is you should return it and get your money back or sell it on eBay...
Grounding kits are a waste of money. If your factory ground wires are in good shape, they are 100% adequate. (If they are not good, you can replace them for a few $...) Want to know what kind of grounding wires we used on our 1,400+ horsepower drag supra? You guessed it, stock.
Note the distinct lack of a ground wire kit and the distinct presence of kicking ass in the image above.
Don't waste your money on rice boy parts.
However, if you insist upon installing them rather than selling them to some aspiring Honda owner, since those kits don't actually do anything, you can hook it up any old way you like. I guess whichever way looks "fastest"..