Why are wire harnesses necessary for a car?
![Why are wire harnesses necessary for a car?](http://huamaowire.com/cdn/shop/articles/DSC_6096_1170x717_crop_center.jpg?v=1676621183)
A car’s electrical system needs a power source to function properly. A wire harness provides the necessary connection between a different power source such as batteries and alternators in order for them to be able to work together without interference from one another.