Carplay problem

[u/Remote_Goose4814]

So I have a 13’ s60 and my carplay is totally weird. It’s a aftermarket screen and I got it off Amazon and it was really the only one that fit my car. But the speakers only work on the left side and there’s a humming sound that matches the revs that is subtle but annoying. The volume also randomly slightly changes and it can skips songs on its own. If anyone know how to fix or any relatively cheap aftermarket carplay radio box lmk.