[Longshot270]

Yeah thats what I do. Whenever I get together with a group of people out side I crank up the stereo. But so that I dont kill my truck battery I have a marine/RV deep cycle battery. It actually has more amps than the regular battery so it'll last longer and louder. You should also check the Hz that it is tuned for. The higher frequencies tend to produce less heat while still having good sound.