I have been testing my lights and my new box today and am having some troubles. The lights are making a screaching sound when they are hooked up, and the fuse between the battery and my amp is in,but when the fuse is out they stop making the screaching sound. I dont think it is the ground because it is grounded straight to the battery. what else could it be?

 

Well, I would take the ground from the amp off the battery and attach it to a pure metal surface such as the chassis. Amp's use +12V, remote, and ground wires, not +12, remote, and negative. Negative doesn't constitute as a ground.

If you ever hear a buzz or screeching sound coming from anything electrical, check for a bad ground.

 

ok ill try that. ive just been testing it ouside my car for now, but ill try grounding it to something else

 

i figured it out i had the power wires crossed with some of the speaker wires which was making the noise when the amp turned on

 

Need to clean up those power wires a bit I see.

 

lol ya. i was just testing it in the garage tho so its not like its a crazy messy install

 

guy.... whatever you did that solved the problem.... it was not because you had power wires crossed with speaker wires..... or RCA cables for that matter......

 

I agree and get a fuse between the switch and the + on the battery.