Static with the amp connected to the battery outside of the car. Is my amp bad?
Yea thats how i set it. Even with it on the lowest gain it has static. And 32or34/40 volume when setting. If the amp has static the the HU will amplify it just like it does music?Very strange that your amp is putting out static without the head unit connected, and the static is also there with the head unit connected and follows the volume control on the head unit. This points to both the head unit and the amp having individual issues that are causing similar artifacts. Not that this will solve your problem but you always want your amp gains set as low as possible so that the volume control on your head unit creates maximum system output (without distortion) with the volume control turned all the way up. Standard gain structure is minimum input gain (your amp) with maximum output gain (your head unit).
The head unit is usually before the amplifier....
If the amp has static the the HU will amplify it just like it does music?