I have the non infinity stock stereo system

I want something louder, way louder hopefully and a better sound. lookling for a pretty easy install as well.

Possibly lookin to replace the soundbar speakers and the 2 up front. Powered would be better so i dont need to install a amp if thats possible.

any reccomendations? any one have some pretty loud speakers they installed? Loud to the point where going full blast is not necessary?