hooking up subs.
ok so i have my positive, ground, and remote all set up along with a 3000w lanzar amp (piece of S*** i know i just want a little bass with my music) ran to 2 black mamba 12"s. my problem is that i was to keep the factory HU. therefor i have no RCA inputs. i have a LOC (Line-out Converter) hooked up, but i only have it hooked to the two 6x9's in above the trunk, and then ran to my amp...so idk why (i have NEVER had to use an LOC, i usually replace most of the factory stereo's but i'd like to keep the oil like and mpg and gas mileage ect with the car) but anyways i dont know why but the subs are NOT hitting like they should. it sounds like i just have 2 more 6x9's sittin in the trunk. i want them to hit. but idk what to do. does anyone know what ive done wrong? or if there's a better way of doing it? idc how much work it takes i just want the maximum power out of the subs without having to replace the HU. thanks very much! (btw its an 06' g6 gt sedan if you needed that :P)