MTX subwoofer/amp combo issue

[cuetip]

well u never no, audio shops usually mess up, like they have videos of people doing some shitty wall building, or not hooking up the woofers right, or not grounding stuff correctly. thats why i do it myself.. so i no where everything is at and if something goes wrong its on me not on the audio shop which may not fix it, and if they do they may charge you to fix it