I ran the cable through the symposer tube, I have my amp power cable running through the same spot. I then used a keyed power source by the dead pedal so I don't drain the battery needlessly... Though doing it that way I have power cable zip tied along the cowl mounts, it works but I should've been less lazy and used one of the firewall grommets on the passenger side and a fuse tap in the fuse box behind the glove box.