I use it in the car as well to listen to various things. It works great. There is no issue with the plug. In fact, the build quality was a big plus, I didn't want it to be too big in size, and the fact that it has an extra gap in the plug so it doesn't get stuck in the phone case was very convenient for me.

I wanted to connect my phone to the car to listen to music. With my own phone (Redmi Note 8 Pro), it didn't work. The sound from the phone was heard as if the plug hadn't been inserted. However, it worked fine with other phones I tried.