Reply to thread

Message: <blockquote data-quote="SPL Blazer" data-source="post: 4847865" data-attributes="member: 587873"><p>You can add a ground from the front to the rear battery, but you don't have to. The relay he's talking about is for when you have two batteries and you plan on running your system for extended periods of time with the engine off. The relay shut's off the front battery and makes your system get all it's power from the rear battery when the engine is off, once you turn the engine on then both batteries are being used, this keeps you from killing your front battery and let's you keep enough juice to start the car. If you don't plan on showing off with the car off then don't worry about the relay.</p></blockquote><p></p>

Top