Kevin. In that case, I would install a second battery in a similar fashion that a camper would be wired. Get an isolator and put the sound system on the far side of the isolator so that you can run the sound system on that second battery and have the charging system charge it but the sound system will never run your car's primary battery low, causing your car's systems suffer. ----- Original Message ----- From: "Kevin Pacheco" <kevin50187@xxxxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Friday, January 03, 2003 8:23 PM Subject: Re: IML: Pros and cons of 2 bateries? I need two batteries because my sound system is pulling current from other things in the car (head lights) KEVIN 71 IMP