Thank you for posting this. Do you mind sharing the model of your boat? I’m looking for a new boat in the 7000 pound range plus a dual axle trailer and would love to see the he specs for weight and trailer on yours to compare.
FWIW, I pushed a screw driver from the frunk side so that I could get a razor on the inside and cut it. I then fed the wire through from the frunk side and pulled it. I couldn’t get my hands up in there enough to push the wire through from the cabin side.
Thanks for posting this. I’ve been watching for someone to do something with the factory sub box. How did you route power to the amp? Under the door sills?