If you want to change the car stereo, which one do you choose, Harman Kardon or JBL?

If you want to buy a horn and then go to the store to modify it, it must be JBL, because Harman Kardon has not yet launched a modified horn in the market, and their speakers are directly supplied to car companies. JBL is actually owned by Harman Group, in order to let the owner of the original car who is not a Harman speaker enjoy Harman quality. In addition to JBL, Harman also has a brand called Yin Fei Lux, and there are also car-modified stereos. So I want to buy Harman's car to change the stereo, remember these two brands, find official channels, don't buy others, and be careful to be cheated. Are you satisfied with my answer? If so, help me adopt.