I have a EK civic sedan and want to start doing a mild wire tuck and thought a battery relocation would be a good starting point. I went to summit racing and found a universal battery relocation kit for $100 and one kit comes with a 2 gauge cables and 1 gauge cables. So my question is what's te difference in the cables?also the 1 gauge is $164 and the 2 is $100

 

The difference is the gauge of wire. Do you need 1/0 gauge wire? Are you running a high power sound system? If not then 2 gauge will suffice.

 

I have a 600 and 400 watt JL audio amps in my car I rub two 10 inch subs and internal speakers so would that be considered big enough to have to go with the more expensive one?