In addition, the price level of wiring harness is mainly restricted by the impact of price changes of downstream OEMs. Generally, with the appearance of new models, the price of automobiles is higher, and the price of wiring harnesses is also higher. However, over time, the emergence of alternative models will force the price of the original model to be reduced. In order to maintain the level of profit, OEMs will require suppliers of components such as automotive wiring harnesses to reduce prices. Large-scale and high-market component manufacturers will maintain their profit levels through automated production, scale effects, integrated production, and technical iterations, and the price of wiring harnesses will gradually decrease.