Hello. I have a problem that when i connect my speakers amplifier to the battery negative terminal the amplifier works, but as soon as i connect the car negative cable with it, it stops working, fuses and wires are fine, i have looked into its ground wire it had some white things onit, so i hooked up another ground wire with different area in the chassis... but nothing changed.... can anyone help me or tell me whats causing this problem....
Amplifier is 1200 watt, connected with 2 speakers right/left, and a subwoofer in between them.