I just recently installed a radio on my boat. I have it hooked up to the battery in the front of the boat...I have it grounded to the boat..as well. I am having some issues attatching other things to the same battery when the radio is on the battery however. It seems to want to burn any additional wires up that i connect...it does that whole spark thing...so I take it off immediately. I know it has to be someting with the radio because I can hook up other things to it as long as the radio isn't on it. Thanks in advance for any help advice received.