Ok,i think im going to put the bat in the Fiesta in the boot,so i have abit of space for the airfilter....

Has anyone done this conversion,on any car??? IF so,what do i need?? I know i would have to run a live down the car,but would i also have to run a earth too,or mouth that in the engine bay somewhere??? Probabley a REALLY obvious answer,but ust asking???

Pete...