I have a 2017 equinox LT. I've checked infotainment and amp fuses, is there something I have to do to get my sub to play audio through my radio. Everything is factory. It hasn't had any audio come from it since I bought it. I heard it was only for anc? Is there a way to push audio and bass through it? Also could anybody give me some directions on how to remove the back panels to access the sub?