i just ordered my volcano sv and i am allready looking for a battey pack to go into the car. i know that it has to be a 6 volt hump pack but since i do not have the car yet i do not know what type of connecter to have on the battery pack. (also not sure of the exact size of the tray) i was also wondering if there are any battery packs for the radio. also could anybody recommend a good fail safe that will fit under the body, any help would be greatly apprecieated! And i would also like to say that this forum rocks! i have learned so much about my truck and i don't even have it yet! THANK YOU