xKronicx
10+ year member
Member
Hey, I just hooked up my amp and sub. And everything sounds good but when i turn on the car the speaker will start to make a whistling sound. And when i go it will start to make a higher pitch sound like the motor. I am wondering whats the problem? I am using the car battery for my 12v source. Could it be the wire are not thick enough? Because it works fine when the car is not on.
