The GM engineers allocated space for a starter battery in the trunk, but it remained in the engine bay until the release of the C6 Z06. I decided to replicate the setup as it improves the corner weight balance by shifting weight to the rear right wheel, which is the lightest corner of a stock C5. For the power cable, I used a heavy gauge 50 mm2/1 AWG multi stranded copper cable cable and press fit terminals. The heavy gauge is necessary to reduce the voltage drop caused by the long stretch and the high current required by the starter motor. The ground cable is connected to the chassis, which is available in short distance from the battery inside the right wheel well. I installed a 350A automatic fuse next to the battery. The power cable is then routed forward above the right wheel well and then follows the existing wiring in the door sill to the front. With a battery in the passenger cabin it important to use a battery which does not emit harmful gases, so I used a sealed SMF battery.