yo Dude's i am trying to run my car amp of my mians but im not really shore how to do it. i have tryed using a normal charger adapter and running it off that but it will only go up to volume 10 on my head unit then will cut out i think i need mor power so tryed it with two chargers and it semmed to make a diffrence it did go a little louder but i dont really want to be using like 20 of them to get the full power of the head unit is there anyone with any ideas it would be a big help .