Sub and amp wiring help

[jamcan1987]

i have managed to wire the other parts up fine but how do i get the wire that is connected to the battery inside the car. please help as i have just started and its going to piss down with rain soon.

[Scott]

ice section, been answered quite a few times to.

Large grommit behind the brake servo. Open bonnet, find bonnet release cable, follow it back to bulkhead bobs your uncle