The last two years I have camped out I have seen people with speakers and dj equipment to play music. I always wondered where they got the power to run these things. My group this year is pretty big around 4-5 campsites and of course we want to have music. I just have no idea where to get the power from. Can you convert car batteries into some sort of power outlet? We probably wont have dj equipment and speakers but we do at least want to power a boombox. Anyone done it before? Have ideas on how to do it? Thanks.