i put my battery in my trunk... my wire is gage2...but i dont have enough volt to start my engine easly... why ???...
What kind of battery are you using? The stock battery? If so, you most likely aren't getting enough volts to your engine b/c the 2 guage wire requires more amps especially that long of 2 awg wire. Why did you relocate your battery anyway? I have an optima yellow top under my hood and a kinetik khc800 in the trunk.
I'd say you don't have enough ground to it. Where is/are your grounding point(s)?