no, no, no!! Just hook the battery up to the wall socket.. jeesh..just park your car in your room, duh...
Well then you don't need an amp, because you can just hook your speaker up to the wall socket as well.. problem solved.Why need a battery when you can just hook up the amp straight to the wall socket.
//content.invisioncic.com/y282845/emoticons/graduate.gif.d982460be9f153bb54e5d4cb744f6ae8.gifcan you use the 12V battery's negative as ground?Thanks