From the battery to the starter or a power distribution centre, red is power and black is ground. After the starter or PDC, the wire will change colors and sizes, some have stripes, some don't and sizes vary. It's all designed to help mechanics find problems by crossreferencing the wiring in the car with what they see in the service manual.
stock wire harness speaker wires are always Gray, White< purple< green
Go buy a wiring harness. It clips right in to the old wiring, and only takes about 3 seconds. Its about 15 dollars, and you only need to wire the new harness to the new CD player/radio, and the colors will match.
Buy a Haynes or Chiltons Manual. They have wiring diagrams in the back with wire colors listed.
There is a wiring harness most everywhere you look on that and any vehicle. Be more specific.
It depends on which Harness you are looking for.
The wiring harness can be removed by unplugging all of the wires. The wiring harness is also held in place by several retaining screws. Remove the retaining screws.
The purpose of the wiring harness is to help keep wires together instead of hanging freely. You can purchase a new wiring harness at any auto repair shop.
2006 Dodge Dakota - Where do i find the trailer wiring harness
How to remove a glow pug wiring harness from a 6.0
The factory wiring harness for the trailers will plug in under the back of the vehicle in the area of the spare tire, the harness plugs into the wiring harness for the tail lights.
go buy a aftermarket wiring harness from any car stereo store and snap it in and follow the wiring colors and you are done..