Hey guys im new to the site my brother has a avic and his other external amp (to power subs) is not working it turns on but the head unit won't pick up any of the rca plugs i asked a friend and he said that there might be a setting on the unit to turn it on and off... i belive my brother ran all of the cd's in the head unit but im not possative.. if you guys could give me and idea's id be greatfull

Thanks,
Darwick