Do you need a wiring harness for an aftermarket radio?
Whether you’re installing a new stereo, swapping out your air conditioner compressor, or just replacing a set of speakers, you’ll likely find yourself in need of a wiring harness. These simple devices make it easier to connect new electrical components to the factory-installed wiring in your car.
What is B+ stereo wiring?
On a small wire going all the way to the rear of the car it could be a volt or more. B+ voltage refers to the voltage found at the positive terminal of your battery. With the engine off, this is typically a bit over 12 volts positive, engine running it should be more like 14.4 volts.
What color wire is B+?
|Letter Code||Purpose||NMRA wire color|
|L-||Light negative||White, Yellow, Green or Violet|