Originally posted by :i wish that way was as easy as it may seem. but it's not. if you have 2 batteries in your car, that extra battery has to be charged by the alternator. and if you have a stock alternator, then you might have to upgrade you alternator to a more higher output so it will handle the 2 batteries. the process is expensive becuase i did it myself. you have any questions, feel free to email. jsons2fly@yahoo.com