wiring

2006 Equinox. The wiring for window, lock, and speakers running into the driver's door have almost all been pulled out or broken inside the door jam. PICTURE ATTACHED. Seems obvious that they were installed too tightly and repeated opening and closing of the door just messed it all up...

I'm new to the forum. I'm looking for some advice on installing two 10 in subs and a1000 watt amp in my truck. I would like to keepthe factory head but would rather not cut into wiring of the truck with a line out converter. Does anyone know of a way to do this. If I do have to cut into the...