3:35 ! Don't ever do this. This is bad... don't just shovel wires and control box letting it hang there. Make sure wire there secured and zip tighten to old wires. Nothing bouncing on metal and vibrate... specially of u have bass speaker
This job is truly novice. Wires/cables should be run in either split loom tubing or expanding woven tubing, then secured to the vehicle to prevent movement.
You can definitely add wire looms but it is not required and will still last. We follow the manufacturer installation guidelines when for all videos which direct the installer to only use the provided product. Additionally, all wires are tied off and secured, we just may not get it all on video.