12v?

[xmodsnut]

hum I did something simular to this but in a different way
take the extra pack run it in line with the positive motor wire. there is no need to upgrade fets but when you turn ur car off it will keep running. also you will lose reverse but gain turbo forward when reverse is hit.

I did it once on my F150 V1 just to see what happens and thats what it did.

for you people who dont know V1 is the original evo truck chassis.