I recently got a computer speaker, and was wondering if there is a way to make the speaker turn on automatically as soon as the computer turns on. So far it seems that, with plugging it in through the av ports and through an adapter, the speaker does not turn on automatically, and I must do it myself. I also have to change the "source" for the speaker to av each time. Would plugging it into the computer through line-in instead fix these problems? Is there any other way, or am I just going to have to turn it on and change the source manually every time? Thanks!