So I need to move the Battery to make room for some stuff, I plan on running an optima red top becuase im totally in love with them, they rock my world... will the 4ga wire I have running my subs be big enough to carry the charge to the front?

 

You should have asked this in the stereo section but use atleast 2awg if you are mounting the battery in the rear of the car. I used 0awg with a 100amp circuit breaker because I got an awesome deal. Make sure you have GOOD grounds after the battery is moved. If you have extra 8 gauge ground cable use it to make sure the engine bay is properly grounded. Is your Optima located in the stock location right now?

 

Just use 0ga just in case.

I am too scared, but always wanted to do this.

Good Luck.