I just got my system installed today (apline type R 12" and rockford 301M). I have a pionner 6400 HU and so does one of my friends. He has some other features to control his subs that i dont have. Im not sure which ones he has but he can make the sub do other things like he in b4 it hits out, turn off the amp from HU, and other things. Anyone know why i dont have theses features when we have the same HU?
Kyle
Kyle