Should I set my AQ1200D's gain with the knob plugged in or not? I heard many different methods. Some people say that when you set it w/o and then put it in, it screws with the gain settings, or something like that.
I like to be able to adjust the amount of bass I have while I'm driving. Sometimes I have a headache and just want some smooth jazz free of bass, lol. (Call me crazy)