Hi, I installed an extra amp to power additional subs using the technique found in the how to. I used a soche hilevel to low level converter and everything works BUT when I turn the volume down, it doesnt alter the volume of the subs at all. What did I do wron? Or is that just how it is?

 

check the gain on the amp. Turn it down if it is maxxxd.

 

Nah that not it. Im saying even with the volume at 0 theres still sound coming out of the subs no matter what the gain level.

 

Is it music (sound) or just rythmic movement of the cones (spurious signal)?

How loud?

Does it do it with the radio off? Then stop if engine off?