My amplifier has a remote plug that looks exactly like a phone plug, I'm told it is for a seperate volume that makes the music louder, is it worth buying one? will it make a difference? or will the head unit take care of it all?
it's actually for a "bass boost" control that mounts up at the dash. it's just an attenuation cut/boost circuit so if the bass is too much you can turn it down a bit at the amp. if you need it, is up to you.