I wanted to install some 3 in speakers on my busa with a mini amp....when I got an idea. I have some harman kardan computer speakers that are clear and very loud. The speakers are about 2 1/2 inches. SO I took out the speakers and built in x-overs. My question is if I run this off my battery using a cigarette lighter and a mini inverter to plug in the speakers --WILL this draw too much off my battery. I figured I would ask before I mess something up. And I am sure lots of people wouldn't put speakers on a busa but I wanted to try the cheaper way before I dumped 300 on a similar kit for bikes